# one angle of an isosceles triangle is 40 degrees. what are the two possible sizes for the larger angle(s) in this triangle?

33,443 questions
1. ## angles

one angle of an isosceles triangle is 40 degrees. what are the two possible sizes for the larger angle(s) in this triangle?

asked by montana on May 31, 2011
2. ## Geometry

Please answer at least one . PLEASE 1. Triangle XYZ has a right angle at Y. V,W are on XZ such that XV=XY. WZ=YZ, find ANGLE VYW . 2. STUVWXYZ is a regular octagon. Find SW/ TZ. 3. The interior angles of a convex polygon form an arithmetic progression with

asked by Jayden on October 19, 2013
3. ## Math-CHECK PLEASE

Which of the statements is ALWAYS TRUE? A-A right triangle is a scalene triangle. B-An equilateral triangle is an isosceles triangle. C-An isosceles triangle is an obtuse triangle. D-A right triangle is an acute triangle. I got either A or D. I don't know.

asked by Catherine on March 8, 2011
4. ## math

1. What is the correct classification for the triangle shown below? A triangle has two angles measuring 68 degrees and 22 degrees. (1 point) acute, scalene acute, isosceles --- right, scalene obtuse, scalene 2. What is the value of x in the triangle? A

asked by Unknown on March 1, 2018
5. ## Math

One angle of an isosceles triangle measures 80 degrees. Witch other angles could be in that isosceles triangle?

asked by Courtney0 on April 25, 2018
6. ## Math - Triangles

An isosceles triangle has an interior angle of 26 degrees. Which of the following is a possible degree measure for one of the other interior angles of the triangle? a) 52 degrees b) 64 degrees c) 78 degrees d) 104 degrees e) 128 degrees

asked by Venus on September 10, 2013
7. ## geometry

The measure of an exterior angle of an isosceles triangle is x degrees. What are the possible angle measures of the triangle in terms of x? Describe all the possible values of x.

asked by Anonymous on November 6, 2011
8. ## math

the measures of the interior angles of a triangle are x,y and 2x respectively. if the triangle is isosceles, what is one possible measure of an angle of this triangle, in degrees?

asked by anonymous on July 24, 2013
9. ## MATH

the measures of the interior angles of a triangle are x,y and 2x respectively. if the triangle is isosceles, what is one possible measure of an angle of this triangle, in degrees?

asked by Help!! on July 24, 2013
10. ## Math

One angle of an isosceles triangle is 28°. What are the other 2 angles? (Choose all that apply.) 76 degrees and 76 degrees 116 degrees and 116 degrees 28 degrees and 152 degrees 28 degrees and 124 degrees

asked by Ryan on January 18, 2012
11. ## Math

Triangle ABC is an isosceles triangle with angle A= 40 degrees. Give three possible values for angle B

asked by Mackenzie on May 7, 2014
12. ## Math

Can someone please check to see if I answered these true and false statements correctly? Thank you! 1. A triangle can have two right angles. (TRUE??) 2. An equilateral triangle is also an acute. (TRUE??) 3. A right triangle can also be an isosceles.

asked by Anonymous on November 9, 2014
13. ## math

Plane A which contains an isosceles right triangle forms a dihedral angle of 60 degrees with another plane B. If the hypotenuse of the triangle lies in plane B and measures 8 in., find the distance from the vertex of the right angle to plane B, and the

asked by nexan umbod on January 14, 2017
14. ## trigonometry

the base of an isosceles triangle measures 108 feet and forms an angle of 55 degrees with one equal sides. find the perimeter of the triangle

asked by jer on January 3, 2016
15. ## Math

Which of the following values best approximates of the length of c in triangle ABC where c = 90(degrees), b = 12, and B = 15(degrees)? c = 3.1058 c = 12.4233 c = 44.7846 c = 46.3644 In triangle ABC, find b, to the nearest degree, given a = 7, b = 10, and C

asked by Max on January 26, 2018
16. ## algebra.

problems about angles: Hi. I needed help on some problems for the math section that we are doing in class. I am trying out some problems in my math book, but they prove quite difficult. 1. In a certain parallelogram, if the measure of one angle is 30

asked by jason on November 15, 2007
17. ## Math

In a diagram of an 2 isosceles triangles, where ABC is a big triangle and a ADE, is just inside the top portion of ABC. Isosceles triangle ABC is similar to a isosceles triangle ADE what is the length of DE, which is the base part of a isosceles triangle

asked by Terri on July 27, 2016
18. ## geometry (check answers)

Determine whether you can construct many, one, or no triangle(s) with the given description. a) a triangle with angle measures of 50°, 70°, and 100° no b) a triangle with one angle measure of 60° and one 4-centimeter side no c) a scalene triangle with

asked by cade on April 10, 2016
19. ## corollary to isosceles triangle theorem

how to prove 1)the measure of each angle of an equilateral triangle is 60. 2)the bisector of the vertex angle of an isosceles triangle is the perpendicular bisector of the base. Thanks. 1) The angles in any triangle have to add up to 180 degrees, right? 3

asked by Jen on November 17, 2006
20. ## math

An isosceles, obtuse triangle has one angle with a degree measure that is 50% larger than the measure of a right angle. What is the measure, in degrees, of one of the two smallest angles in the triangle? Express your answer as a decimal to the nearest

asked by G on March 23, 2015
21. ## geometry

how do you find the height of an isosceles triangle only knowing the lengths of all three bases? EX: There's isosceles triangle ABC with vertex angle B. AB= 5x-28. BC= 2x+11. AC= x+5

asked by erin on January 15, 2010
22. ## maths

calculate third angle of an isosceles triangle whose base angle is 48 degrees

asked by Nita on April 5, 2016
23. ## Euclidean Geometry

I am in the 10th Grade and my question is: The base of an isosceles triangle is 21cm. long. The altitude to the base is 9cm. long. What is the approx. measure of a base angle of the triangle? The tangent of that angle is 9/10.5 = 0.8571 Trigonometric

asked by Blake on April 28, 2007
24. ## Geometry

An Isosceles triangle has a 96degree angle. What are the measures of the other 2 angles? Do all triangles have to add up to 180degrees? If so, than this isn't possible because an isosceles triangle has 2 sides the same length. Correct?

asked by Tyler on November 27, 2007
25. ## math

A triangle has angles described as followed: the first angle is four more than seven times a number, another angle is four less than the first and the third angle is twice as large as the first. What are the sizes of each angle. I got the first angle of

asked by Samantha on January 17, 2014
26. ## geometry

triangle ABC is isosceles with AC = BC and

asked by G on March 24, 2015
27. ## Math

6. Jackson Made A Poster In The Shape of A Quadrilateral. Each pair of opposite sides of the poster are congruent and parallel. Which of the following names best describes the shape of jacksons poster, A. Parallelogram ~~~ B. Rhombus c. Rectangle D.

asked by Kolton on February 23, 2017
28. ## Math

1. Hannah drew a pattern using only equilateral triangles. Which of the following statements about the angles is an equilateral triangle is true? A. The measurement of each angle is 60 degrees** B. The measurement of each angle is 120 degrees C. The

asked by Megan on February 25, 2016
29. ## geometry

An obtuse isosceles triangle has one angle with a measure of (2x) degrees and another angle (5x) degress. What is the measure of the third angle of the triangle?

asked by Jen on March 31, 2015
30. ## maths

In an isosceles triangle if two angles are 60 degrees, what degree will the third angle be?

asked by Suleman on October 16, 2016
31. ## Algebra

Isosceles triangle,two angles have the same measure. Determine the measure of the third angle in an isosceles triangle,if the third angle is 10 more than one-half of either of the equal measurements

asked by Lee on January 19, 2011
32. ## Geometry

Triangle DEF is an isosceles triangle with DE = FE. If DE = 5 and ÚD = 75 degrees: what is the length of FE, the measure of angle F, and the measure of angle E? E D ∆ F

asked by Phillip on June 16, 2011
33. ## Math

Given; a=2.52, c=4.75 find the remaining parts of the right triangle. I found b which equals 4.03 but need help with the angle. We already know that one angle = 90 since its a right triangle. I just need to know angle A. Angle A = a)58 degrees b)32 degrees

asked by melinda on March 10, 2007
34. ## math

This question is suppose to be simple but i keep getting it wrong Triangle LMN has vertices L(1, 6), M(6, 3) and N(5, 7). What type of triangle is Triangle LMN? Select all that apply Scalene triangle Right triangle Isosceles triangle Equilateral triangle

asked by Jakis on March 1, 2017
35. ## Geometry math

1: what is the correct classification for the triangle shown below? 1:acute, scalene

asked by Starfire on February 23, 2018
36. ## 12th grade

Find altitude of isosceles triangle if angle=53 degrees and base is 8 inches.

asked by Ro on December 2, 2010
37. ## geometry

In an isosceles triangle, if a base angle has a measure of 43 degrees, then the vertex angle must have a measure of 80 degrees as well.

asked by Anonymous on November 1, 2011
38. ## Don't understand this Geometry question

Isosceles triangle XYZ is placed on a coordinate plane to be used for a coordinate proof. What should the coordinates of its vertices be? a. (-a,0), (0,0), (a,0) b. (0,0), (0,-a), (-a,0) c. (0,0), (0,a), (a,0) d. (0,0), (0,-a), (a,0) ??? 5 REASONS WHY

asked by Ellie on August 28, 2006
39. ## mathssssSsssss

1.Determine the area of a parallelogram in which 2 adjacent sides are 10cm and 13cm and the angle between them is 55 degrees? 2.If the area of triangle ABC is 5000m squared with a=150m and b=70m what are the two possible sizes of angle C?

asked by katlego ratsoma on September 10, 2013
40. ## geometry

The legs of an isosceles triangle are each 18 cm long and the angle between them measures 48 degrees. What is the length of the third side?

asked by cori on March 25, 2010
41. ## Geometery

For triangle MNP, find the value of x and the measure of each of the three angles. at the top of the triangle is X degrees and that is angle M at the bottom left of the triangle is (2x-1) degrees and that is angle P at the bottom right of the triangle is

asked by reece on January 19, 2015

This is the last question of my quiz, I need help with it. I need just one question answered. Question: The angles opposite the congruent sides of an isosceles triangle are congruent. Find the value of x in the triangle. Show all your work. The triangles'

asked by Lily on February 19, 2016
43. ## geometry

WHAT IS THE BASE LENGTH OF AN ISOSCELES TRIANGLE IF YOU KNOW THE EQUAL SIDES HAVE A VALUE OF 5 AND THE ANGLE BETWEEN THEM IS 45 DEGREES AND THE BASE ANGLES ARE 67.5 DEGREES?

asked by Anonymous on November 3, 2010
44. ## Trigonometry

find the perimeter of an isosceles triangle whose base is 20cm and the vertex angle is 120 degrees.

asked by Louise on August 9, 2014
45. ## trig

Find altitude of isosceles triangle if angle=53 degrees (the equal angles) and the base is 8 inches.

asked by Ro on December 2, 2010
46. ## Math (Geometry)

The perimeter of right triangle ABC is equal to the perimeter of isosceles triangle DEF. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer, what is the greatest possible length for

asked by ANONYMOUS on August 7, 2012
47. ## math

In an Isosceles triangle, one angle is 16 degrees more than twice the measure of one of the equal angles. Find the measure od eah angle.

asked by Valery on April 10, 2011
48. ## angle measurements HELP ME PLZ QUICKLY!!!

name the type or triangle with angle measurements of 30 degrees , 60 degrees, and 90 degrees. A. a acute triangle B. a equilateral triangle C. right triangle D. a Obtuse ( I think its a right am I right? btw I no what this triangle would look like thought

asked by mia on April 22, 2014
49. ## Geometry Honors

Can someone help me with Always, Sometimes, Never questions?? I have answered all of these, but I am not sure if they are right. 1. The base angle of an isosceles triangle are acute----Always 2. When the altitude and the median are drawn from the same

asked by Melissa on May 28, 2013
50. ## Geometry

Can you help me with Always, Sometimes, Never questions?? I have answered all of these, but I am not sure if they are right. 1. The base angle of an isosceles triangle are acute----Always 2. When the altitude and the median are drawn from the same vertex

asked by Melissa on May 28, 2013
51. ## maths

XYZ is an isosceles triangle.[XY]=[XZ]=6cm and YXZ(angle is on X)=100 degrees. Calculate line [YZ] correct to 2 s.f.

asked by bashiru on May 21, 2017
52. ## Mathematics

An isosceles triangle has a vertical angle of 116 degrees and its base is 8cm long.calculate its height

asked by Jessica on September 19, 2014
53. ## MAth

an isosceles triangle has two angles that measure 75 degrees. what is the measure of the third angle of the triangle?

asked by Anonymous on February 8, 2017

Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100°-Many b)A right triangle with three congruent sides-one c)A scalene triangle with side lengths of 7 cm, 3

asked by Madi on May 23, 2017
55. ## math

Determine whether you can construct many, one, or no triangle(s) with each description. a)An isosceles triangle with angle measures of 40° and 100° b)A right triangle with three congruent sides c)A scalene triangle with side lengths of 7 cm, 3 cm, and 9

asked by Madi on May 23, 2017
56. ## Math - Geometry

Two right triangles are touching at the tips. The left triangle has the 90 degree angle to the bottom left, and 33 degrees on the bottom right. Based on this info, the other angle is 57 degrees. The right triangle has the right angle given, but it is on

asked by Nikki on December 1, 2007
57. ## Math 7 - Homework Question Check

12. Is the figure below a right triangle? On the lines below, explain how you determined your answer. Answer - The figure below is not a right triangle. The reason why it's not a right triangle is because this figure is a acute angle. Acute angle is less

asked by Laruen on April 16, 2012
58. ## Trig

An isosceles triangle has legs 4 feet long. If the vertex angle measures 30 degrees, find the length of the base.

asked by Anonymous on March 23, 2015
59. ## geometry

The perimeter of right triangle RST is equal to the perimeter of isosceles triangle XYZ. The lengths of the legs of the right triangle are 6 and 8. If the length of each side of the isosceles triangle is an integer. what is the greatest possible length for

asked by HSutha on December 12, 2011
60. ## Math

Answer with Always, Sometimes or Never True. Kindly explain why so that I can understand. Thanks. 1. An interior angle and an exterior angle of a triangle are supplementary. 2. The bisector of an angle of an isosceles triangle is also a perpendicular

asked by Millie on January 22, 2015
61. ## math

The measure of angle A is 124 degrees. What is the correct classification for angle A? A. acute B. right C. obtuse D. straight Find the complement of an angle with a measure of 72 degrees A. 162 degrees B. 18 degrees C. 252 degrees D. 108 degrees The

asked by Michael on February 21, 2019
62. ## Geometry

The measure of the vertex angle of an isosceles triangle is 98 degrees What is the measure of a base angle

asked by Anonymous on November 10, 2015
63. ## Math

The measure of angle BCA is: A) 30 degrees B) 36 degrees C) 45 degrees D) 60 degrees It is a iscoles triangle which the number 3x on the top of the triangle angle A and a line extending to D going right from A and Angle B is at the bottom left corner A and

asked by Lia on September 21, 2016
64. ## Math

Decide whether each statement is always true, sometimes true, or never true. a. a square is a rectangle b. a right triangle is an isosceles triangle c. an acute triangle is an isosceles triangle d. an isosceles triangle is a right triangle

asked by Part on March 16, 2015
65. ## geometry

In an isosceles triangle ABis congruent to BC. Measure of angle A is x +3y and the measure of angle C is 3x +2y. The measure of angle C is 63 degrees. Find x and y.

asked by Aaron on November 15, 2010

An isosceles triangle has two parallel sides and one non parallel side, the base. The angles are labelled q and r at the base and p at the point of the triangle. One parallel side is 44m in length, while the angle directly opposite from this side(angle q)

asked by Jenny on June 27, 2016

Geometry ***(PLEASE CHECK MY ANSWER)*** 1. If triangle RST = triangle NPQ, which of the following is true? A.) ÚR = ÚP B.) ÚR = ÚQ C.) ÚT = ÚP D.) ÚT = ÚQ

asked by Shadyy on November 15, 2013
68. ## Math

Two different isosceles triangles with perimeter 4a+b? Is this a right angle isosceles triangle?

asked by Dan on September 17, 2008
69. ## Math

One of the two equal angles of an isosceles.triangle is greatest than the third angle 18° . Find the three angles of the isosceles triangle

asked by Vishwam on December 6, 2016
70. ## maths

In an isosceles triangle angle in the top vertex is twice the sum of the base angle. Find the exterior angles of the triangle.

asked by koushik on March 20, 2017
71. ## Math Trig

I have to find the x (bottom length of the triangle) in a right triangle. angle A is 33.9 degrees angle B is 90 degrees and the height of the triangle is 3.3cm What formula do I use to figure out this question?

asked by nj on January 7, 2013
72. ## math

Tania designed a logo in the shape of a triangle. The triangle has one angle that measures 95° and two sides that are the same length. Which best names the shape of the logo? A. equilateral triangle B. isosceles triangle C. scalene triangle D. right

asked by Anonymous on June 26, 2018
73. ## math

Tania designed a logo in the shape of a triangle. The triangle has one angle that measures 95° and two sides that are the same length. Which best names the shape of the logo? A. equilateral triangle B. isosceles triangle C. scalene triangle D. right

asked by aryana on June 26, 2018
74. ## MATH

In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in these angles In a triangle ABC, angle A is 2 times angles C and angle B is 20 degrees less than angle C find the number of degrees in

asked by fiaie on August 24, 2006
75. ## geometry

Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?

asked by Ana on November 26, 2014
76. ## Geometry

Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?

asked by Ana on November 26, 2014
77. ## Maths

The vertical angle of an isosceles triangle is twice the sum of the base angles. Find each angle of the triangle??

asked by Aryan Goel on November 10, 2017
78. ## Math

If the ratio of a base angle and vertical angle of an isosceles triangle is 1:2 find the angles of the triangle

asked by Niken on March 19, 2016
79. ## math 8

the measure of one angle of MNO is 90 . This means that the triangle can be classified as a ? triangle Right triangle or a isosceles or scalene is this right?

asked by codey on May 21, 2012
80. ## Math

Again i wrote the question wrong. 4. Classify the triangle with angles measuring 69º, 42º, and 69º. A. right B. equilateral C. isosceles acute D. isosceles obtuse You said isosceles but i didn't know whether it was C or D. Here's one more. 3. Classify

asked by Jman on January 22, 2013
81. ## math

Plz explain to me how to do this : The angles of an equilateral triangle are congruent. If x represents the measure of one angle of an equilateral triangle which equation represents the sum of the angle measures of the triangle A. x+x=90 degrees B.x+x+x=90

asked by Young Trippy Lil G on March 6, 2017
82. ## geometry

in triangle FSH, angle f is 58 degrees and angle s is 64 degrees. in triangle LVQ, angle v is 64 degrees and angle q is 48 degrees are the two triangles similar?

asked by kim on December 1, 2011
83. ## geometry

Triangle ABC is an isosceles triangle, where angle B is the vertex angle. If BC = 10x-4 , AC= 2x+18 , and AB= 6x+32, find the value of x.

asked by tim on December 15, 2010
84. ## algebra-trig help asap

An isosceles triangle has a base 22 cm long and a base angle of 72 degrees. Find its perimeter.

asked by missy on March 26, 2012
85. ## geometry

if the measure of one angle of an isosceles triangle is 92 degrees. what is the measure of either of remaining angles

asked by chantel on May 25, 2010
86. ## math

The sum of the 3 angles of a triangle is 180 degrees. In triangle PQR, the largest angle is twice the size of the smallest angle. The remaining angle is 16 degrees larger than the smallest. Write and solve an equation to find the size of the smallest angle

asked by jorge on April 5, 2012
87. ## Math

What's the value of the missing angle *picture of a triangle and square put together which basically makes a hexagon. angles are 90 degrees, 90 degrees, 130 degrees, 130 degrees. I have to find the last angle.* A. 50 degrees B. 60 degrees C. 100 degrees D.

asked by Anonymous on February 5, 2015
88. ## MATH trigonometry

in an isosceles triangle the vertex angle measures 90 degrees and the length of each congruent leg is 5√2. whats the length of the base?

asked by sara on February 10, 2010
89. ## geometry!

ABC is an isosceles triangle with AB=AC, ∠BAC=96∘. D is a point such that ∠DCA=48∘, AD=BC and angle DAC is obtuse. What is the measure (in degrees) of ∠DAC?

90. ## Math

Hi! So, I'm doing a test, and I've answered all my answers except for one: Find the missing angle measure. Then classify the triangle by its measures. Because this will not let me post a photo, I will write what all the angles are: 40 degrees (less than

asked by TreatPPLHowUWant2BTreated on March 29, 2019
91. ## Geometry Question (multiple choice)!

The isosceles trapezoid is part of an isosceles triangle with a 34° vertex angle. What is the measure of an acute base angle of the trapezoid? Of an obtuse angle? 73°; 107° 34°; 146° 73°; 146° 34°; 107° Thank you =) :) ;)

asked by Claire on January 10, 2012
92. ## math

The vertices of a triangle are listed below. H(-2,4), I(22,4), J(10,-1) Which of the following correctly classifies the triangle? 1.The triangle is an obtuse isosceles triangle. 2.The triangle is a right scalene triangle. 3.The triangle is an obtuse

asked by ana on May 4, 2012
93. ## Geometry

The problem is, triangle ABC is an isosceles triangle where

asked by Stan on March 22, 2018
94. ## Math👎🏾

A right isosceles triangle has an angle with measure of 45degress if x represent third angle of the triangle, what is x? HELP

asked by Hehe😂 on January 30, 2019
95. ## basic geometric

a would like to get someone too help me with these math problem. Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measur? The angles of a triangle always adds to 180o. You know two of the angles, solve for the third. can

asked by vero on March 11, 2007
96. ## geometry

In isosceles triangle ABC, AB = BC, and D is a point between A and C on AC. Can you conclude MO > ML, MN > MO, angle L > angle BDA, or angle N > angle BDC

asked by Nick on January 5, 2011
97. ## isosceles triangle

An isosceles triangle is a triangle that has two equal sides. Find AB, BC and AC. Determine if the triangle is isoseles or not based on the lengths of the three sides. can someone show me how to solve?please The triangle is isosceles if AB = BC, or BC =

asked by Jim on July 26, 2007
98. ## Geometry

If the measures,in degrees, of the three angles of a triangle are x, x+10, and 2x-6, the triangle must be: A.right,B.equilateral,C.Scalene, D.Isosceles

asked by LP on January 6, 2013
99. ## Math

1. The base of an isosceles triangle is 14 cm in length and the angle opposite the base measures 86 degrees. Find the length of each of the congruent sides. 2. A ski slope has a 42 degrees incline and 170 yard long. Find the vertical drop.

asked by Tsunayoshi on February 4, 2014
100. ## Geometry

Can anybody help me with this word problem? A homeowner, who loves math, decides to make a garden/patio area in the following way. She decides to make the gardening area, where she will plant roses bushes in the shape of an equilateral triangle having a

asked by Jonas on October 8, 2014