Questions on Geometry: Proofs in Geometry answered by real tutors!

Tutors Answer Your Questions about Geometry proofs (FREE)

Question 260889: M < a=m < c
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Question 260922: whats the definition of contrapositive?

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Question 261259: Please help me solve this proof.

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Question 261883: The Question says:
Given: segment AB is parallel to segment DC;
segment BC is parallel to segment AE
Prove: BC/EA = BD/EB
I dont understand how to do proofs
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Question 261968: i need to know all the resons for a geometry proof
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Question 262405: I need help with INDIRECT PROOFS.
Given: -4x + 2 <-10
Prove: x > 3
All I know is that you have to do the opposite which would be -4x + 2 is greater than or equal to -10. That is as far as I have gotten and I do not know where to go from there.
Click here to see answer by richwmiller(9135)

Question 262375: I was given that GHJN and JKLM are parallelograms. H and M are collinear and N and K are collinear. I have to prove that angle G is congruent to angle L. The picture is two parallelograms and it is connected by a corner.
Click here to see answer by Edwin McCravy(8879)

Question 262728: solve 5(x-1)=8 in proof form
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Question 263160: What is XY if: WXYZ is a square, WX=1-10x, YZ=14+3x ?
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Question 263295: If an angle bisector of a triangle is the perpendicular bisector of the opposite side, then the triangle is isosceles.
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Question 263591: Here's what the problem is...
Given:AL=SK
Prove:AS=LK
Here are my statements leading to my proff:
1.AL=SK
2.LS-LS
3.AL+LS=SK+LS
4.AL+LS=AS
5.SK+LS=LK
6.AS=LK
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Question 263763: Find the complementary angle of 17°
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Question 263827: solve and show formulas:
7x-30=5x

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Question 265245: GIVEN: AB AND CD BISECT EACH OTHER AT X. AB=CD PROVE:AX=CX
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Question 265201: Draw and label a diagram. list, in terms of the diagram, what is given and what is to be proved. then write a proof.
if the vertex angle of one isosceles triangle is congruent to the vertex angle of another isosceles triangle, then the triangles are similar.
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Question 265439: Evaluate definite integral of 24x^7dx
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Question 267352: i need serious help if someone can help me out with this

Given : n^ is even
prove: n^ is divisible by 4.
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Question 267355: Given:n squared is even
prove: n squared is divisible by 4
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Question 267532: jhhjhj
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Question 267265: i just recently submitted this question"If an angle bisector of a triangle is the perpendicular bisector of the opposite side, then the triangle is isosceles" if someone can write it in indirect prove form not wether its true or false
Click here to see answer by Mr.Gardner(4)

Question 268880: I have a problem that I'm stuck in can you help me solve it? Please show your work so I can understand it.
What is missing from the following proof?
Given: ab = 1/2 ac, prove b is the midpoint of segment ac
Statements Reason
ab=1/2ac given
2ab=ac multiplication property of equality
ab+ab=ac distributive property
ab+bc=ac __________?___________
ab+ab=ab+bc transitive property of equality
ab=bc subtraction porperty of equality
b is the midpoint of segment ac definition of midpoint
The answer is one of the following four choices:
addition property of equality
subtraction property of equality
transitive property of equality
segment addition postulate
Click here to see answer by stanbon(57216)

Question 269986: Hello. I was given 2 questions about Venn diagrams where we are given information and we need to decide which is in the bigger circle (outside circle) and which goes in the smaller circle (inside the bigger circle)
1.) if a car is new, then it has seat belts (WOULD NEW CAR BE IN THE SMALL CIRCLE AND SEAT BELTS BE IN THE BIG CIRCLE?)
2.) every square is a quadrilateral (WOULD SQUARE BE IN THE LITTLE CIRCLE AND QUADRILATERAL BE IN THE BIGGER CIRCLE?)
thanks i eagerly await your response

Click here to see answer by edjones(7569)

Question 271338: what is the area of a triangle that has a base of 14.4 cm and height of 6.8 cm
Click here to see answer by LarissaRichardson(34)

Question 271335: What is reflexive Property of Equality?
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Question 272927: how do you solve:
Given: angle LOM is congruent to angle NPM
LM is congruent to NM
Prove:
triangle LOM is congruent to angel NPM
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Question 273408: how do you classify a shape as a sqaure,rectangle, rhombus,or parllelogram?
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Question 273740: how do i solve the proof with the given information.
given: angle A is congruent to angle C
angle B is congruent to angle D
Prove: ABCD is a parallelogram
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Question 273798: if it says PE bisects HL at M, is HM and ML congurent?
Click here to see answer by Savvy(1)

Question 274011: if the circumference of a basketball is 28.25 inches, what is its diameter?

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Question 274246: how do you prove that CA squared = AB x AD if you have a big triangle with a right angle in it and and altitude starting at the vertex.
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Question 274646: How do I solve this with the given information?
Given: angle BAD is about equal to angle CAD
Line AD is perpendicular to line BC
Prove: triangle ABC is isosceles
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Question 274649: Given: angle A is supplementary to angle C.
angle B is supplementary to angle C.
Prove: angle A is congruent to angle B.

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Question 276253: Given the midpoint and one of the endpoints,find the other endpoint of the segment.
M(3,2) and E(6,8)
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Question 276603: Explain to an eighth grade student how to purchase a cover for a swimming pool that has a 3-foot walkway all the way around it. The cover must fit over the pool and the walkway.
Demonstrate your procedure by working out an example (problem) using your method.

Click here to see answer by richwmiller(9135)

Question 276811: Can you please help me!
Prove: If both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a paralellogram.
I started it by saying:
Given: Angle B is congruent to Angle D.
and Angle A is congruent to Angle C.
Prove: ABCD is a paralellogram.
Thank you so much!!!
Click here to see answer by solver91311(16868)

Question 276923: how can you proove he the proof "if both pairs of opposite angles are congruent in a quadralateral then it is a parallelogram"
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Question 277464: What kind of technique can I use that would be able to figure out these proofs step by step?
Click here to see answer by stanbon(57216)

Question 281297: how do you figure out similarities in right triangles?
Click here to see answer by Edwin McCravy(8879)

Question 281610: You may need to draw the figures indicated on your scratch paper to answer this question.
Find the slope of the line P (- 6, 8), Q (- 6, 12).
m = ?
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Question 283548: show that the area of any triangle given the length of sides a and b and included angle theta in between the two given sides is :
Click here to see answer by Alan3354(30957)

Question 284473: 2 column proof
Given: angle BAD is congruent to angle CAD
Line AD is Perpindicular to BC

Prove: ABC is isosceles
please help fast thanks!
Click here to see answer by solver91311(16868)

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