# Homework Help: Math: Geometry

## Recent Homework Questions About Geometry

**Geometry**

The vertices of a triangle are P(-4,1), Q(-2,-8), R(8,-1). What are the vertices of the image reflected across the y-axis? my answer is P'(4,1),Q'(2,-8),R'(-8,-1)

*Thursday, November 5, 2015 by Steve*

**Geometry**

Which rule describes the transformation that is a reflection across the x-axis? a- (x,y)>(x,-y) b- >(-x,y) c_ >(-x,-y) d- >(y,x) my answer is a

*Thursday, November 5, 2015 by Steve*

**Geometry**

prove that if the lengths of two sides of a and b, triangle are a and b respectively, then the lengths of the corresponding altitudes to those sides are in the ratio b/a.

*Wednesday, November 4, 2015 by Ethan*

**geometry**

A fire hydrant that is 1.5 feet high casts a shadow that is 2.5 feet long. At the same time of day, a lamppost casts a shadow 15 feet long. What is the height of the lamppost?

*Tuesday, November 3, 2015 by jay*

**Geometry**

Question:Ray BD bisects <ABC. The m<ABD=5× and m<DBC=3×+10. Find × and m<ABC

*Tuesday, November 3, 2015 by tiara*

**math**

GEOMETRY The formula for the perimeter of a rectangle is P = 2 + 2w, where is the length and w is the width. A rectangle has a perimeter of 24 inches. Find its dimensions if its length is 3 inches greater than its width.

*Tuesday, November 3, 2015 by Sally*

**Geometry**

How many lines of symmetry on the four operating symbols? Addition sign : 4 Subtraction sign : 2 Multiplication sign : 4 Division sign : 2

*Monday, November 2, 2015 by Geo*

**Geometry**

If the point P(-3,2) is translated under the vector (1,-5) what quadrant will P' be located? Quadrant 3?

*Monday, November 2, 2015 by Geo*

**Geometry**

I'm not sure how to complete a two-column proof: Given <2=<4,m<2=100 Prove:m<3=70 All i have so far: <2=<4, m<2=100 : Given M<2 =m <4 :definition of congruent angles M<4=110 : ? M<3+m<4= 180 : ? M<3=70 : ? This is so stressful, please hep!

*Monday, November 2, 2015 by Amanda*

**Geometry**

Write two conditional statements that have false converse statements

*Friday, October 30, 2015 by Mike*

**Geometry**

when two parallel lines are cut by a transversal and one alternate interior angle is x squared and the other is 3x. How do u slove for x?

*Thursday, October 29, 2015 by Laura*

**Math**

A parking lot is being redesigned. The lot is 40 yds x 50yds. The owner wants to repaint the parking lot to allow for 51 spaces. Spaces must be rectangular and 9 feet wide by 18 feet long. The painted stripes separating the spaces must be 4 inches wide. The driving aisles must...

*Thursday, October 29, 2015 by Millie*

**Geometry**

Find the distance between the lines with the equations y = 3/2x+4 and −3x+2y = −1. Round your answer to the nearest tenth.

*Thursday, October 29, 2015 by Sam*

**geometry**

P P'(–4, –7) for the glide reflection where the translation is (x, y) (x,y-4) and the line of reflection is x= -1. Find the coordinates of P A.(-4,-11) B.(2,-7) C.(2,-3) D.(-4,-3)

*Thursday, October 29, 2015 by jenny*

**Geometry**

When you are doing a glide reflection how does the line of reflection being y=1 affect the final answer? Can someone help me with that...start with (-3,-3) and the translation is (x+5,y) I think the the x will be (2, but unsure what happens to the y) help somebody..

*Thursday, October 29, 2015 by Cassie*

**geometry**

if two parallel lines are cut by a transversal and two interior angles are 3x and x sqaured. how do you solve for x?

*Thursday, October 29, 2015 by Laura*

**geometry**

A(-3,3) A is a glide reflection where the translation is (x,y) (x+5,y), and the line of reflection is y=1. What are the coordinates of A' A.(2,-3) B.(-3,5) C.(5,1) D.(2,5)

*Thursday, October 29, 2015 by jenny*

**geometry**

P P'(–4, –7) for the glide reflection where the translation is (x, y) (x,y-4) and the line of reflection is x= -1. Find the coordinates of P A.(-4,-11) B.(2,-7) C.(2,-3) D.(-4,-3)

*Thursday, October 29, 2015 by jenny*

**Geometry**

Given: Line segment AD bisects angle BAC. Angle 1 is congruent to angle 3. Prove: Angle 2 is congruent to angle 3 Write a two-column proof

*Thursday, October 29, 2015 by Jsjdi*

**Geometry**

given ABCD IS A rectangle . IF BC =5ft and AB =8ft find the missing sides

*Wednesday, October 28, 2015 by Troy*

**geometry**

The vertices of a triangle are P(–4, 1), Q(–2, –8), and R(8, –1). Name the vertices of the image reflected across the y-axis. 1.P'(–4, –1), Q'(–2, 8), R' (8, 1) 2.P'(4, –1), Q'(2, 8), R'(–8, 1) 3.P'(4, 1), Q'(2, 8), R'(–8, –1) 4.P'(–4, 1), Q'(–2, –8...

*Wednesday, October 28, 2015 by jenny*

**geometry**

Triangle ABC is a right triangle. If side AC=5 and side BC=6, What is the measure of side AB which is the hypotenus

*Wednesday, October 28, 2015 by Anonymous*

**Geometry**

How do you find an endpoint with a midpoint and one endpoint?

*Tuesday, October 27, 2015 by Jess*

**Geometry**

m<1=2x°,m<2=(x-5)°,and m<3=100°.use an equation to find the measures of<1 and <2.

*Monday, October 26, 2015 by Marybeth*

**Geometry**

m<1=2x°,m<2=(x-5)°,and m<3=100°.use an equation to find the measures of<1 and <2.

*Monday, October 26, 2015 by Marybeth*

**Geometry Rectangle**

Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?

*Monday, October 26, 2015 by Zijay*

**Geometry:Rectangles**

Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?

*Monday, October 26, 2015 by Zijay*

**Math Geometry**

Gery wants to fence a rectangular field whose area is 1200 sq.m. He has only 100 meters of fencing so he decided to fence only the three side of the rectangle letting the wall be the fourth side. How wide the rectangle should be?

*Monday, October 26, 2015 by Zijay*

**geometry**

How can I turn 192cubic cm into a triangular prism?

*Sunday, October 25, 2015 by david*

**geometry**

given angle a is parallel to angle b and the measure of angle 7 is 94 find the measure of angle 10 and angle 9 someone please help me on this ! 😫

*Saturday, October 24, 2015 by jennyyyy*

**Geometry**

The degree measure of the vertex angle is (3x-8). The degree measure for each base angle is (6x-41). What is the value of vertex angle?

*Wednesday, October 21, 2015 by Kay*

**Geometry**

A right triangle has exterior angles at each of its acute angles with measures in the ratio 13:14. Find the measure of the smallest interior angle of the triangle. 40 (degrees) 50 (degrees) 130 (degrees) 140 (degrees) Please help? Thanks

*Wednesday, October 21, 2015 by SkatingDJ*

**Geometry**

Plane R contains points ,M,and Y. Plane Z intersects with plane R at SM, AY intersects plane R at point Y. . Point A is not in plane Z or plane R. MY forms a right angle with MS. A. What is measure of < SMY? B. Name three points that are noncollinear. C. Can you name three ...

*Tuesday, October 20, 2015 by Sky*

**Geometry**

2 sides of an equilateral triangle measure (y+10) units and (y^2-2) units. If the perimeter of the triangle is 21 units, what is the value of y? I was trying (y+(y+10) + (y^2-2)=21 got to y^2+2y+-13 and wasn't sure how to proceed. Or should I take a side (y^2-2)*3=21? I ended ...

*Monday, October 19, 2015 by Ann*

**Geometry**

if yvonne wanted to make 3 dresses that use 4 7/8 yd of fabric easy explain how she could use estimation to make sure she has enough fabric for all of them.

*Monday, October 19, 2015 by Anonymous*

**Geometry**

If jk is congruent to lm, then lm is congruent to jk

*Monday, October 19, 2015 by D'Andre*

**Geometry i need help urgently plz plz plz**

The lenght of a line segement is of 10units and the co-ordinate of one end point are (2,-3) if the abscissa of the other end is 10 find the ordinate of the other end?? Working plz plz

*Sunday, October 18, 2015 by Collins*

**Geometry**

Complete the two column proof. Given: angle 2 and angle 5 are supplementary Prove: l is parallel to m Statements: 1. BLANK 2. angle 3 is congruent to angle 2 3. angle 3 and angle 5 are supplementary 4. BLANK Reasons: 1.________ 2.________ 3.________ 4.________

*Thursday, October 15, 2015 by Blair Needs Ms. Sue*

**Pre calc- confused**

Geometry/Maximum area: A rancher wants to enlarge an existing rectangular corral such that the total area of the new corral is 1.5 times that of the original corral. The current corral's dimensions are 250 feet by 160 feet. The rancher wants to increase each dimension by the ...

*Thursday, October 15, 2015 by Sophia*

**Geometry plz help its not to hard**

18. Two lines intersect at a point. the vertical angles formed are supplementary. What is the measure of each of the angles? Explain.

*Wednesday, October 14, 2015 by Jimmy*

**Math geometry**

Given AB intersects BD <EFG and <CBD are complementary prove <EFG complements <ABC

*Tuesday, October 13, 2015 by Samantha*

**Geometry 1 question**

Use the truth table to test the validity of the following argument. If you play varsity sports, then you are dismissed from school an hour early. You are dismissed from school an hour early. Therefore, you are a varsity athlete. valid invalid Sorry about the repost:( But I ...

*Tuesday, October 13, 2015 by SkatingDJ*

**Geometry**

Name the Property of Equality that justifies this statement: x = x Reflexive Property Symmetric Property Transitive Property Substitution Property Use the truth table to test the validity of the following argument. If you play varsity sports, then you are dismissed from school...

*Tuesday, October 13, 2015 by SkatingDJ*

**geometry**

Which statement best describes deductive reasoning?

*Tuesday, October 13, 2015 by jarrod*

**Geometry**

The area of a triangle is 30cm^2. What is the base of the triangle if the height is 6 cm?

*Tuesday, October 13, 2015 by Terry*

**Geometry**

What is a counterexample of the following conjecture? Conjecture: Any number that is divisible by 3 is also divisible by 6 36 27 23 18 Is it C, 23? A little confused:p Please help? Thanks

*Monday, October 12, 2015 by SkatingDJ*

**Maths**

Coordinate Geometry A=(7,4) B=(2,0) Gradient of AB = 4/5 Equation of AB in ax+by=0 for is 4x-5y-8=0. The length of AB in surd form is root41. The point C has coordinates (2,t), where t>0 and AC=AB. a) find the value of t. b) without plotting point, find the area of triangle...

*Monday, October 12, 2015 by Anonymous*

**modern geometry**

Construct the locus of all points (in one half plane) from which the given segment (that you draw) is seen by: a. 120 degrees b. 105 degree I've tried following steps in my textbook but I'm struggling.

*Monday, October 12, 2015 by haley*

**geometry**

There are two noncongruent triangles that have a 9-inch side, a 10-inch side, and that enclose 36 square inches of area. Find the length of the third side in each of these triangles.

*Monday, October 12, 2015 by Nico*

**Geometry**

<DOE contains points D(2,3) O(0,0) and E(5,1). Which of the following angles are both adjacent and supplementary to <DOE? <DOF, with F (10, 2) <DOF, with F (-2, -3) <DOF, with F (-5, -1) <EOF, with F (-5, -1) <EOF, with F (-2, -3) <EOF, with F (10, 2) ...

*Sunday, October 11, 2015 by SkatingDJ*

**geometry**

Suppose BD−→− bisects ∠ABC. If m∠ABD=12x+24 and m∠DBC=20x+16, what is m∠ABC?

*Friday, October 9, 2015 by jackie*

**geometry**

RT=5x=7 and RS=15x-1, what is the value of x?

*Thursday, October 8, 2015 by monica*

**Geometry help check ??**

Given: <2 = <4, m<2 = 110 Proof: m<3 = 70 <2 = <4, m<2 = 110 Given m<2 = m<4 Definition of congruent angles m<4 = 110 b._______ <3 and <4 are a linear pair Definition of a linear pair(shown in diagram) <3 and <4 are supplementary ...

*Thursday, October 8, 2015 by Sammy*

**Geometry**

The measure of an angles supplement is 76 less than that the measure of the angles. Find the measure of rhe angle and its supplement?

*Thursday, October 8, 2015 by ashley*

**Geometry**

Set up a system to solve. Two angles are supplementary. Three times one angle is equal to the other angle minus 16. Find the angles. The answer is x= 41 and y= 139. How did they get the answer?

*Thursday, October 8, 2015 by ashley*

**Geometry**

Set up a system to solve. Two angles are complementary. Four times one angle is equal to the other angle plus 10. Find the two angles.

*Thursday, October 8, 2015 by ashley*

**Geometry**

set up a system to solve. Two angles are supplementary. Twice one angle is equal to the other anlge minus 36. Find both angles.

*Thursday, October 8, 2015 by ashley*

**Geometry**

find the image, of o(-2,-1) after two reflections first across the line y=-5 and then across the line x=1

*Wednesday, October 7, 2015 by Steve*

**Geometry**

Which of the following angles lands in quadrant IV when placed in standard position? 265 degrees -280 degrees -5 degrees 135 degrees I know what IV quadrant means, but I don't get which one it is in degrees :/ Please help? Thanks

*Wednesday, October 7, 2015 by SkatingDJ*

**Geometry**

Why do complementary and supplementary angles not have to be adjacent? As long as the two angles equal 90 degree then they will be complementary. As far as supplementary, as long as the two angle sum equals 180 degrees then they will be supplemental.

*Wednesday, October 7, 2015 by Sue*

**CHECK ANSWERS for geometry**

1. Why are points and lines hard to define? A point you can't move at all, a line you can only move back and forth in the same direction. Does drawing a point or a line accurately illustrate its characteristics? 2. What do we mean when we say a point exists in zero dimensions...

*Tuesday, October 6, 2015 by Sue*

**Geometry**

1. Why are points and lines hard to define? A point you can't move at all, a line you can only move back and forth in the same direction. Does drawing a point or a line accurately illustrate its characteristics? 2. What do we mean when we say a point exists in zero dimensions...

*Tuesday, October 6, 2015 by Sue*

**Geometry**

1. Why are points and lines hard to define? A point you can't move at all, a line you can only move back and forth in the same direction. Does drawing a point or a line accurately illustrate its characteristics? 2. What do we mean when we say a point exists in zero dimensions...

*Tuesday, October 6, 2015 by Sue*

**Geometry**

Find the image of O (-2, -1) after two reflections, first across the line y=-5, and then across the line x=1. (-2, -1) (-1, -6) ( 4, -9) ( 1, -5) I honestly think that the correct answer is not listed. Please help!

*Tuesday, October 6, 2015 by Taylor Wilso*

**Geometry**

Point D is on the interior of angle ABC. Use the given information to find m angle DBC. (Draw the picture.) M angle ABC = (5x +6) M angle ABD = (7x - 9) M angle DBC = (5x - 6) Answer so far: (5x + 6) + (5x - 6) = (7x - 9) 10x = 7x - 9 10 x - 7x = -9 3x = -9 X = -3 Do not ...

*Monday, October 5, 2015 by Justin*

**geometry**

2. the dashed triangle is a dilation image of the solid triangle. what is the scale factor (1 point)

*Monday, October 5, 2015 by jenny*

**Geometry**

Is a triangle with vertices G(3,2), H(8,5) and K(0,10) a right angle. explain plss, pls. very imp.

*Monday, October 5, 2015 by Sara*

**geometry**

the vertices of a triangle are p(-7 -4),q(-7,-8),and r(3,-3).Name the vertices of the image reflected across the line y=x. the choices are A. P'(4,7),Q'(8,7),R'(3,-3) B. P'(4,-7),Q'(8-7),R'(3,3) C. P'(4-7),Q'(-8,-7),R(-3,3) D. P'(-4,7),Q'(-8,7),R'(-3,-3)

*Monday, October 5, 2015 by jenny*

**geometry**

check my answer please!! find the image of o(-2 -1) after two reflections, first across the line y=-5, and then across the line x=1. (-2,-1) (-1,-6)# (4,-9) (1,-5)

*Monday, October 5, 2015 by tj*

**Geometry**

Given: B is the midpoint of line AC. D is the midpoint of line CE. Ab=De Prove AE=4AB

*Monday, October 5, 2015 by Allison*

**geometry**

the vertices of a triangle are p(-7 -4),q(-7,-8),and r(3,-3).Name the vertices of the image reflected across the line y=x.

*Monday, October 5, 2015 by tj*

**geometry**

the vertices of a triangle are p(-7 -4),q(-7,-8),and r(3,-3).Name the vertices of the image reflected across the line y=x. help!!

*Monday, October 5, 2015 by tj*

**geometry**

which of the following is a step in constructing an inscribed square using technology? a)construct segment db, segment, bc, segment ce, segment eg, segment gi, and segment id. b)identify the points of intersection between circle a and circle g. c) draw segments br, rs, and sb...

*Monday, October 5, 2015 by Ana*

**geometry**

Which of the following is the fourth step in copying an angle? A) place the compass on the vertex of the new angle and swing an arc similar to the first one you created. b) open the compass to the width of the intersection points of the ray and arc of the given angle. c) draw ...

*Monday, October 5, 2015 by Ana*

**geometry**

Which of these is a correct step in constructing congruent line segments? a) use a straightedge to draw two equal arcs from the endpoints. b) use a compass to join the endpoints of the line segment. c) use a straightedge to measure the length of the line segment. **** d) use a...

*Monday, October 5, 2015 by Ana*

**8th grade geometry**

How do I find the answer to the following question without knowing the 3rd vertices? Graph a triangle with vertices (3,-2), (-3,2) and height of 3 units. The answer is supposed to be (3, -2), (0,1) and (-3, -2).

*Monday, October 5, 2015 by Alexis*

**Geometry help**

The true conditional statement "If 1/2 (m<ABC) = m<ABD, then m<ABC = 2(m<ABD" illustrates which property of equality? A. Addition property of equality B. Subtraction property of equality C. Multiplication property of equality (My Answer) D. Division property of ...

*Monday, October 5, 2015 by sammy*

**Geometry help**

m angle 2 =34 degrees find m angle 1 Would appreciate the help on this one This is for long x that has 1 and 3 labeled top and bottom left side is labeled 4 right side is 2 That's what it looks like best I know how to describe it

*Monday, October 5, 2015 by sammy*

**Geometry Check please**

Is the following definition of complementary angles reversible? If yes, write it as a true biconditional Complementary angles are two angles whose sum measures to 90 degrees - The statement is not reversible - Yes, if angles are complementary, then their sum measures to 90 ...

*Monday, October 5, 2015 by sammy*

**Geometry**

7. the vertices of a triangle are p(-7 -4) q(-7,-8 and r(3,-3) name the vertices of the image reflected across the line y=x A. P'(4,7),Q'(8,7),R'(3,-3) B. P'(4,-7),Q'(8-7),R'(3,3) C. P'(4-7),Q'(-8,-7),R(-3,3) D. P'(-4,7),Q'(-8,7),R'(-3,-3) I really need HELP

*Monday, October 5, 2015 by dea*

**geometry**

The length of a rectangle is 4 times its width. If the perimeter of the rectangle is 70 ft., find the area.

*Sunday, October 4, 2015 by Christine*

**Geometry**

The shortest edge of a rectangular prism is 3 inches, and its volume is 144 cubic inches. A similar rectangular prism has its shores edge equal to 4 inches. What is the approximate volume of the second prism?

*Friday, October 2, 2015 by MATHQUESTION*

**Geometry**

Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter. Show your work. The ...

*Friday, October 2, 2015 by Alexa*

**Geometry**

An hourglass, composed of two identical cones, is 12 cm tall. The radius of each cone is 3 cm. If you want to fill the bottom half of the hourglass 2/3 full of salt, how much salt will you need? Explain the method you would use to find the amount of salt. How would I solve this?

*Friday, October 2, 2015 by Alexa*

**Geometry**

The equation (x + 5) + (y + 3) = 169 models the position and range of the source of a radio signal. Describe the position of the source and the range of the signals. ???? Would the answer be (5,3) is the center and 13 is the range of signals..??

*Friday, October 2, 2015 by Alexa*

**Geometry**

Janine wants to paint just the sides of a cylindrical pottery vase that has a height of 45 cm and a diameter of16. Janine wants to paint just the sides of a cylindrical pottery vase that has a height of 45 cm and a diameter of 14 cm. To the nearest whole number, find the ...

*Friday, October 2, 2015 by Alexa*

**Geometry**

Are all horizontal lines parallel Use slope to explain how you know I put yes

*Wednesday, September 30, 2015 by Anonymous*

**geometry**

Find the distance between the two points to the nearest hundredths place: (1, 3), (-2, 4)

*Wednesday, September 30, 2015 by ala*

**geometry**

Find the distance between the two points to the nearest hundredths place: 7. (1, 3), (-2, 4)

*Wednesday, September 30, 2015 by ala*

**Geometry**

Find the ratio of the interior angles of a triangle if their respective exterior angles are in the ratio of 5:6:7.

*Tuesday, September 29, 2015 by -N*

**Geometry**

This is the question - Two angles with measures 5x - 5 and 11x - 7 are supplementary. Find the Value of x and the measure of each angle. Thank you so much for your help.

*Tuesday, September 29, 2015 by Josselyne*

**geometry**

The endpoints of the diameter of a circle are at (1,2) and (7,-6). What is the circumference of the circle to the nearest tenth of a unit? a. 15.7units b. 31.4 units c. 62.8 units d. 78.5 units

*Tuesday, September 29, 2015 by Paris*

**Geometry**

Two lines are cut by a transversal such that a pair of alternate interior angles are right angles are the two lines parallel

*Monday, September 28, 2015 by Anonymous*

**Maths**

This is a 3-D Geometry Problem.Please help me out!P is a variable point such that its distance from the xy-plane is always equal to one-fourth of the square of its distances from the y-axis.Show that the locus of P is a cylinder.

*Monday, September 28, 2015 by Bobo*

**Geometry**

A carpenter cut the top section of a window frame with a 37-degree angle on each end. the side pieces each have a 50 degree single cut at their top sides. Will the side pieces of the frame be parallel?

*Monday, September 28, 2015 by Steve*

**Help me! Geometry**

A design on the surface of a balloon is 5 cm wide when the balloon holds 71 cm^3 of air. How much air does the balloon hold when the design is 10 cm wide? Explain the method you use to find the amount of air. How would I solve this step by step?

*Monday, September 28, 2015 by Alexa*

**Geometry**

I'm trying to solve for y (4y+2) = 2(3y-25) I've gotten as far as y= -26 but i needed to figure out how to make the answer positive

*Sunday, September 27, 2015 by Julian*

**Geometry**

Given: r is perpendicular to s, t is perpendicular to s prove:r is parallel to t

*Sunday, September 27, 2015 by Steve*

**Geometry**

A carpenter cut the top section of a window frame with a 37-degree angle on each end. the side pieces each have a 50 degree single cut at their top sides. Will the side pieces of the frame be ?

*Sunday, September 27, 2015 by Steve*

**Geometry**

Elaine purchased 4.5 yards of lace trim from her local fabric shop. She has a circular tablecloth that is 54 inches in diameter and a square tablecloth that is 40 inches on each side. Can she trim either tablecloth?

*Saturday, September 26, 2015 by Clarissa*