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December 19, 2014

Search: Help triangle angles!

Number of results: 6,852

MATHS-traingles
one of the exterior angles of a triangle is 126 degree and the interior opposite angles are in the ratio 2:4. Find the angles of the triangle.
March 2, 2013 by anchal

trig
Please answer b)only a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle? b)Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
April 16, 2008 by Abigail

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? answered below. Interior angles of a triangle is equal to 180 degrees. A triangle only has 3 angles. You have two of them ...
March 11, 2007 by vero

Math
If the measures of the angles in a triangle are in the ration 3:4:5, the measure of the exterior angle of the triangle can not be a) 120D b)165D c)105D d)135D b 165 With the triangle ratio of 3:4:5 the equation can be made: 3x + 4x + 5x = 180 x = 15 The angels of the triangle ...
February 23, 2007 by James

Geometry
How can I tell if a triangle is a 30, 60 90 triangle or a 45 45 90? What are the characteristics? A 45-45-90 triangle has two equal angles (and sides). It is an isoceles right triangle, in other words. It is easy to tell by looking that a 30-60-90 triangle does not have two ...
March 20, 2007 by Emily

Math
A triangle has 2 angles that measure 60 each. Which of the following best describes thiz triangle. A. Right isoseles triangle B. Equilateral triangle C. Obtuse isosceles triangle D. Acute scalene triangle
March 2, 2011 by Help

construct a triangle
How can I construct a triangle ABC with vertices A(-4,2), B(4,3), C(1,-3). what are the angles in order from least measure to greatest measure Since you will have to use trigonometry to find the angles, surely you must know how to plot points. take the slope of each of the ...
August 8, 2007 by Sam

math
if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x-15, the triangle is 1)an isosceles triangle 2)a right triangle 3)an acute triangle 4)an equiangular triangle
May 30, 2008 by derek

math
if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x+15, the triangle is 1)isosceles triangle 2)right triangle 3)acute triangle 4)equiangular triangle
May 30, 2008 by derek

Honors Geometry
In a proof, I am given that Triangle GCF is congruent to Triangle GKF is congruent to Triangle JHM. Triangle GCF and Triangle GKF are Vertical Angles. I am also given that Angle C(on Triangle GCF) is 4y, and Angle G(on Triangle GKF) is 16y. So, obviously, the angle opposite it...
November 3, 2010 by Brenna

Geometry help?
I'm not sure what to do on these questions. The measure of the vertex angle of an isosceles triangle is 26. Find the measure of each base angle If the measures of the three angles of a triangle are x,2x-20, and 3x-10, then what is this type of triangle? Why? 1) By definition ...
August 2, 2006 by Kase

math
Try to draw a triangle with 2 right or obtuse angles. What generalizations can you make about the angles of a triangle? Explain.
April 21, 2010 by Mia

geometry
In a right _angled triangle one of the acute angles is 20 dgrees greater than the other.find the angles of the triangle
April 21, 2012 by Tobi

maths
an isosceles triangle is such that each of the base angles is twice the vertical angle. Find the angles of the triangle
September 27, 2011 by ferjam

vertex angle
The three angles add to 180 degrees. Also , the two base angles of the isoscele triangle are equal, .. Set those base angles equal, and solve for x. Put that value of x into the given, and compute the base angles. The third angle will be the amount to add to the two base ...
August 16, 2007 by Anonymous

geometry
find the value of x in each triangle: triangle x has 1 angle at 53 degree for value x i got: 63.5 degree is that correct? Classify each triangle. 7. The measures of 2 angles are : 45 degree and 45 degree i got: acute 8. the measures of 2 angles are 15 degree and 47 degree i ...
March 21, 2012 by marko

geometry
find the value of x in each triangle: triangle x has 1 angle at 53 degree for value x i got: 63.5 degree is that correct? Classify each triangle. 7. The measures of 2 angles are : 45 degree and 45 degree i got: acute 8. the measures of 2 angles are 15 degree and 47 degree i ...
March 21, 2012 by marko

Angles,Lines and Triangles
Two angles of a triangle are equal and the third angle is greater than each one of them by 18 degree.Find the angles.
June 17, 2014 by Harsh

Math
If two angles of one triangle are congruent to two angles of another triangle, these triangles must be a) scalene b) similar c) congruent d) isosceles Dont all traiangles have 180 degrees? So if two angles were congruent, what about the third? I still don't get it. I would ...
March 4, 2007 by Becky

Geometry
A triangle has two congruent angles and an exterior angle with measure 100. Find two possible sets of measures for the angles of the triangle.
March 17, 2011 by Timm

Advanced C
The measure of one of the equal angles in an isosceles triangle is twice the measure of the remaining angle. Determine the exact radian measures of the three angles in the triangle.
October 26, 2009 by Anonymous

Angles,Lines and Triangles
The sum of two angles of a triangle is 116 degree and their differences is 24 degree.Find the measure of each angle of the triangle.
June 17, 2014 by Harsh

math
The sum of the measures of the angles of any triangle is 180 degrees. In triangle abc, angles a and b have the same measure, while the measure of angle c is 78 degrees larger than each of a and b. What are the measures of the three angles? angle a is __degrees.
September 7, 2012 by Kelly

Math(geometry)
I need to know how to find the meausure of a triangle using vertical angles, and also how to measure a triangle using linear pairs... Oh, I hope I'm not too late with an answer for you... To measure a triangle using linear pairs, you have to use the distance formula (which ...
October 2, 2006 by Dani

ALGEBRA 1
If x and 3x-10 represent the measure of the acute angles of a right tringle find the value of x. THANKS Let's take it step by step. A triangle has 3 angles in it. Those three angles, when added together, is 180. In a right triangle, one of the angles is 90 degrees. The other ...
February 12, 2007 by DANIELLE

Geometry..... reposted ques by me
in the diagram AB=20 cm, BC=21 cm, AD=10 cm and DE= 10.5 cm. Angles ABC and ADE are right angles. if triangle ADE is removed from triangle ABC.What is the area of shaded region that remains?
September 6, 2013 by leena

Math
Need help on the problem below. Tommy drew a triangle. Which information will enable you to draw a triangle that is congruent to Tommy's triangle? a. 2 given sides b. 2 given angles c. 2 given sides and 1 given angle d. 3 given angles Thanks....
October 26, 2013 by Brandi

math
if the measure of the angles of a traingle are represented by 2x, 3x-15, and 7x+15, the traingle is 1 an isosceles triangle 2 a right triangle 3 an acute triangle 4 an equilateral triangle
May 7, 2009 by Anonymous

geometry
Given m 1 + m2=90, what can we conclude? Well, if the angles are in a triangle, the other angle is 90 degrees, which makes the triangle a right triangle.
June 28, 2007 by tina

math
which of the following triangles is both an obtuse triangle and isosceles triangle. A triangle with angles measuring: a) 60,60,60 b) 120,30,30 c) 110,15,55 d) 30,70,80
July 7, 2010 by Tiffany

Math
Imagine there is a triangle with two interior angles of 45◦ . If the shortest side of the triangle is 1cm long, what is the area of the triangle?
April 13, 2011 by Ladoo

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?
July 24, 2013 by anonymous

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?
July 24, 2013 by Help!!

math
a=3,b=2,c=2 would this make a triangle? if so, how would i find the angles? thanks for helping. You would find the angles using the cosine law. When all three sides are given to a triangle, you can solve for each angle.
June 13, 2007 by maggie

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 the top right, and the ...
December 1, 2007 by Nikki

Math
If two angles of one triangle are congruent to two angles of another triangle, then?
September 23, 2013 by Bj

geometry
How do you determine whether each pair of figures is similar and justify your answer? triangle PQR, side PR is 3 and angles P and R are both 60 degrees, triangle GHI, side GH is 7 and angles G and H are both 60 degrees.
December 10, 2009 by Stacy

algebra
angles of a triangle The second angle of a garden triangle is four times as large as the first. the third angle is 45 degrees less than the sum of the other two angles. find the measure of each angle. 15 x 4=60 x 3 = 180 side a=15 side b = 60 sIDE C = 3
August 24, 2014 by Jillian

GEOMETRY (Angles) PLEASE
in triangle ABC, angle b is 5 more than twice angle A and angle C iss 35 less than three times angle A. Find the angles of triangle ABC
August 24, 2013 by yuri

math
Is it possible to have two right angles as exterior angles of a triangle?
October 13, 2009 by unknown

math
In a right angle triangle, two acute angles are in the ratio 2:3. Find the angles?
November 22, 2011 by Benjamin

Geometry
The measure of an exterior angle of a triangle is 120. the interior angles that are not adjacent to this exterior angle are congruent. find the measures of the interior angles of the triangle
March 18, 2010 by Anonymous

math
I need to find out the type of triangle (by the type of angles). Is triangle acute, right or obtuse, when the lenghts of triangle sides are: a) 7, 8, 12 b) 20, 15, 40 c) 2/3, 8/9, 10/9
January 22, 2012 by eve

MATHH
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 these angles A = 2C B...
August 24, 2006 by fiaie

AMBIGUOUS CASE OF SINE LAW
Triangle DEF where triangle E = 144 degrees, e = 10.5m and f = 12.5m. Determine the number of possible triangles that could be drawn with the given measures. Then, find the measure of the other angles in each possible triangle.
February 10, 2013 by hitesh

Math- HELP
There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found the area of the circle..it is 28.27 in.^2 I am...
December 2, 2010 by MK

Math
'one angle is 4 times as large as another angle of the same triangle. the third angle o the triangle has a measure of 60 degress.' what are the measures of the other two angles in the triangle.
February 23, 2012 by Mike

Geometry
If the measures of the exterior angles of the acute angles of a right triangle are (6x+23) and (4x+17), find the measures of the acute angles.
October 5, 2011 by Rosa

Maths 11th Grade
The difference between the two acute angles of a right-angled triangle is 2(pie)/5 radians. Express the angles in degrees?? How to Solve it
July 21, 2010 by Akashdeep Singh

maths
the angles of a triangle are arranged in asscending order of magnitude. if the diffrence between two consecutive angles is 10degree ,find all the three triangles
January 3, 2013 by Anonymous

GEOMETRY ONE QUESTION PLEASE HELP!!!!!
Where is the circumcenter of any given triangle? the point of concurrency of the altitudes of the triangle the point of concurrency of the perpendicular bisectors of the sides of the triangle the point of concurrency of the bisectors of the angles of the triangle the point of ...
December 14, 2011 by ^_^

trig
If a triangle has angles 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle?
April 8, 2008 by Jacob

trig
Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm
April 16, 2008 by Abigail

algebra
the three angles of a triangle are 3x,x+10, and 2x-40. Find the size of the smallest angle in a triangle
October 26, 2010 by miles

Math
The ratio of the measures of the three angles of a triangle is 2:5:8. What is the measure of each angle of the triangle.
January 18, 2013 by MP

math
In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
July 27, 2012 by sunny

geometry
In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
July 27, 2012 by sunny

geometry
If the degree measures of the angles of a triangle are represented by x,y,x+y the triangle must be??
February 10, 2011 by andrea

trig
In a right triangle the hypotenuse has length 10 and the the sum of the cotangents of all three angles of the triangle equals 2. What are the lengths of the other two sides of the triangle? (A) 5 and 5p3 (B) 5p2 and 5p2 (C) 1 and3 p11 (D) 4 and 2p21 (E) None of the above.
May 8, 2011 by dat

math
Susie drew a triangle with angles that measure 47, 43. and 90 degrees. What type of triangle did she draw?
February 22, 2012 by Xavier

Math
The sum of the degrees of the interior angles of a triangle is _____ degrees What is the sum of the interior angles of a parallelogram ? What is the sum of the interior angles of a rhombus? What is the sum of the interior angles of a kite? What is the sum of the interior ...
June 4, 2014 by Mackenzie

trig
Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest whole number. Round your answers for sides c and c' to two decimal places. If either triangle is not possible, enter NONE in each corresponding answer blank.) B = 113...
November 16, 2012 by janice

geometry
The measures of two of the angles of a triangle are 47o and 51o. Then the measure of the third angle of the triangle is
November 8, 2009 by kimama

SAT math
Can someone please double check my true and false answers! 1. All cylinders are prisms: TRUE 2. The angle opposite a side length of 6 cm in a triangle is larger than an angle opposite a side length of 7 cm in the same triangle: FALSE 3. The perpendicular bisector of the base ...
June 2, 2013 by mysterychicken

Math
Triangle ABC is an obtuse triangle with two congruent angles. If m< C = 108 write an expression that represents m<A
April 17, 2011 by Dani

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
January 6, 2013 by LP

trigonometry
an isosceles triangle is inscribe in aradius 100 in .find the angles of the triangle if it is base subtends an arc of 143.7 in
November 28, 2012 by jophy

math
the measures of the angles of a triangle are represented by 2x+30, 5x+10 and 7x the triangle is
January 11, 2013 by dana

inverse trig function
How do I do this by sketching a triangle. sin( arcsin(1/2) + arccos(1/2) ) Thanks. let's start with arcsin(1/2) draw a right angled triangle where theta and alpha are the two angles other than the 90 angle. suppose you make the opposite side 1, and the hypotenuse 2. Now look ...
April 9, 2007 by Jen

geometry
there is a problem on my paper in which there is a right angle forming a triangle. the right angle is to the right end of the triangle. at the vertex at the end of the left side, those two lines go on to make two more angles. how do i figure out the degree of those angles. ex...
January 22, 2008 by lizzie

math
1)what equation represents a line that is perpendicular to the line whose equation is -2y=3x+7? 2)if the measures of the angles of a triangle are reprsented by 2x, 3x-15, and 7x+15, is the triangle an acute triangle?
April 7, 2009 by jerry

math
triangle ABC is an isoscles triangle and semicircle, have same base AB and same area. Find the base angles of the triangle.
April 23, 2013 by molly

MATH
two sides of a triangle measure 8 and 15. how many integer values can be assigned to the third side so that all the angles in the triangle are acute.
January 28, 2011 by Diana

geometry
Two sides of a triangle measure 8 and 15. How many integer values can be assigned to the third side so that all the angles in the triangle are acute?
April 18, 2011 by samuel

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. (TRUE??) 4. A scalene ...
November 9, 2014 by Anonymous

trig
Find all solutions to the following triangle. (Round your answers for angles A, B, A', and B' to the nearest minute. Round your answers for sides a and a' to the nearest whole number. If either triangle is not possible, enter NONE in each corresponding answer blank.) C = 23 ...
November 16, 2012 by janice

trig
Find all solutions to the following triangle. (Round your answers for angles A, C, A', and C' to the nearest minute. Round your answers for sides a and a' to two decimal places. If either triangle is not possible, enter NONE in each corresponding answer blank.) B = 65 50', b...
November 16, 2012 by janice

Physic II
In the figure Q=4.6 nC and all other quantities are exact. What is the magnitude of the force on the charge Q? The figure is a triangle with equal sides of 1cm and 60 degree angles. Two of the corners on the bottom of the triangle has a charge of +2nC and Q is the top corner ...
January 26, 2014 by Can

Geometry
In an equilateral triangle, what is the difference between the sum of the exterior angles and the sum of the interior angles?
December 7, 2010 by Alexis

geometry
Write a two column proof of the Corollary Triangle Sum Theorem. The acute angles of a right triangle are complementary. m<A + m<B=90degrees
October 23, 2006 by Steve

Math
(1) Which of the following ingegers can not represent the lengths of the sides of a triangle? (9,10,11) (4.7,9) (4,8,12) & (6,6,11) (2) The measures of two supplementary angles are in the ratio 5:1. What is the measure of the smaller triangle?
February 23, 2007 by Peggy

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 x 60 = 180 2) ?? 2. ...
November 17, 2006 by Jen

Per-calc Helppppp
keep in mind answers should be pi radians or if necessary 3 dec. csc^2-2=0 all angles 4cos^2x-4cosx+1=0 all angles and name 8 angles 7sin^2x-22sinx+3=0 all angles and name 8 angles 2cos^2x-7cosx=-3 all angles sinx(2sinx+1)=0 all angles
April 19, 2012 by Amanda

Math
One angle of a triangle measures 120 degrees. The other two angles are congruent. Write and solve an equation to find the measure of the congruent angles.
February 13, 2012 by Mike

geometry
In triangle GHJ and triangle KLM, it's given that <G and <K are right angles, segment GH is = to segment KL and <H is = to <L. prove that triangle GHJ is = to triangle KLM/
December 13, 2012 by sherianna johnson

4th grade
Geometry, Isoseles right triangle. Line segments MN and NO are ----? A. parallel lines, B. opposite angles, C. perpendicular lines, D. obtuse angles. I can't see that any of these are the answer to the question. Can you help me?
April 6, 2009 by Katie

maths
The second angle of a triangle is 4 times as large as the first. The third angle is more than the sum of the other two angles. Find the measure of all three angles.
August 3, 2011 by susan

maths - shapes
Can you name these quadrilaterals? a) All sides are the same length, opposite sides are parallel, angles are not 90 degrees. b) Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. c) The diagonals bisect each ...
April 8, 2009 by janey

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 degrees more than the ...
November 15, 2007 by jason

math
It is a proof. Given: line DB bisects line AC line AD is parallel to line BE AD=BE Prove: DB=EC there are two triangles connected together by point B. They are labled A D B and B E C. D and E are the top points of the triangles. they look like they would be right angle ...
October 8, 2006 by ann

Geometry
Indirect Proofs Prove a triangle cannot have 2 right angles. 1) Given triangle ABC. 2) Assume angle A and angle B are both right angles is true by one of two possibilities (it is either true or false, so we assume it is true) This is my first time to do indirect proofs, so if ...
November 18, 2010 by chica

Math
Two parallel lines cut by a transversal can create all the following types of angles except A. Alternate interior angles B. Alternate exterior angles C. Corresponding angles D. Complementary angles
January 3, 2010 by S

physics and geometry
ok proving that thest two angles are equal Gesh almost done lol :O h t t p : / /w w w .a n g e l f i r e. c o m / s ta r s / d h s ph y s i c s / f r ic t i o n . j p g ok How to prove this? Similar triangles. Notice the upper angle in that photo is a right angle (ramp to Fn...
August 11, 2009 by physics and geometry

Math
#4. 1. the mystery shape has at least 2 congruent sides. 2. it has fewer than 2 obtuse angles. 3. it has more than 1 line of symmetry. 4. it has at least 1 acute angle. A. equilateral triangle B. trapezoid C. square D. lsosceles right triangle E. parallelogram F. scalene ...
March 22, 2011 by Rayna

pre algebra
the measures of the angles of (triangle) RST are in the ratio 2:3:5. find the measures of each, and classify the triangle as acute, right, obtuse.
June 16, 2010 by lavena

geometry
If a triangle has angle measures 15, 120 and 45, and the length of the side between the 15 and 120 angles is 8, what is the area of the triangle?
February 10, 2011 by Linda

angles
one angle of an isosceles triangle is 40 degrees. what are the two possible sizes for the larger angle(s) in this triangle?
May 31, 2011 by montana

arithmetic
The measure of two angles of a triangle are 35* and 45*. What is the measure of the third angle of the triangle? A. 95* B. 100* C. 105 D. 110*
March 19, 2013 by Peltier

pre algebra
the measure of the angles of triangle RST are the ratio 2:3:5. find the measure of each angle, and classify the triangle as acute, right or straight
June 20, 2010 by lavena

Math
The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.
August 11, 2010 by jess

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