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

Tutors Answer Your Questions about Geometry proofs (FREE)

Question 238587: he is 21 years old

Click here to see answer by scott8148(6628)

Question 238587: he is 21 years old

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Question 238704: Question: Write Equations of the line that passes through the given points in point-slope form and slope-intercept form.
Problem: x-intercept is -6 ; y-intercept is 2
Point-slipe form:_______________

Slope-intercept form:__________
Click here to see answer by College Student(505)

Question 236699: Do you know the answer of the folloging question, or the steps to solve it?
Given: M is the midpoint ofPQ
MQ = QN
Prove: PM = Qn
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Question 239199: If two angles are congruent and supplemmenatry, then the measure of each is 90 degrees, IS that right. Please explain? I am very confused.
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Question 239582: I need help with a proof?
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Question 239628: Please help me with this proof.
Given: Triangle RST is congruent To triangle PSA
Prove: PART is a parallelogram.
Thank you.
Click here to see answer by solver91311(16897)

Question 239626: I dont understand clearly how to do geometry proofs working with isosceles triangles and the rest of chapter 4 in geometry...can you please help me?
Click here to see answer by College Student(505)

Question 240126: Given: L is the midpoint of line segment IE, line segment NE is congruent to NI. Prove that line segment NI bisects angle INE
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Question 240532: Solve each of the following equations for y in terms of x.
3/4(2x-4y)=9
Click here to see answer by Alan3354(30993)

Question 241691: I was asked to prove the following:
Prove that a kite can be divided into two isoceles triangles by a single segment.
Can you please help me?
Click here to see answer by ly12603(44)

Question 242229: I have a proof and shown is quadrilateral ABCD. On the figure the diagonals AC and DB are drawn. The point where they intersect is marked X. The givens are that AB and DC are parallel and that AC bisects BD. And I need to prove that figure ABCD is a parallelogram. I also need to set it up in the standard proof column order with statements on one side and reasons on the other. Thank you!
Click here to see answer by solver91311(16897)

Question 242241: Explain in a friendly matter how to do diagram proofs. I do not understand fully how to find the proofs from what is given
Click here to see answer by College Student(505)

Question 242705: The measure of a complement of an angle is ten less than three times the measure of the angle. Find the measures of the angle and its complement.
Click here to see answer by josey1(1)

Question 242906: given; CP bisects angle BCR and angle BPR
prove; triangle BCP congruent to triangle RCP
pls reply me back this my homework
i will be waiting thank you
Click here to see answer by jim_thompson5910(28598)

Question 242937: 2 sides of an isoceles triangle w/1 90 degree angle are 12", what length is the third leg?
It has been a LONG,Long time since I attempted these theorums, but looks like I need them again!
Click here to see answer by edjones(7569)

Question 243006: I would like to solve the unknown angles of a trapezoid? I know the legs of the equal sided trapezoid and the angles total 180 degrees on each side (total 360 degrees, both sides). The top portion is 10.75" and bottom portion is 58.75" and each side leg 39.75". What are those angles and how do you solve?
thanks, Larry
Click here to see answer by Edwin McCravy(8912)

Question 244269: how can i better understand proofs and solve them?
Click here to see answer by ly12603(44)

Question 244320: Please help me answer this proof
Given:line segment YW is an altitude of triangle XYZ; angle X is congruent to angle Z
Prove:line segment YW is a median of triangle XYZ

Click here to see answer by geometryguy(2)

Question 244310: Given: line segment RT is perpendicular to plane P; line segment RK is congruent to line segment RZ
Prove: triangle KTZ is isosceles Please help me!!
Click here to see answer by geometryguy(2)

Question 244902: given ab is congruent to ad, cb is congruent to cd
prove triangle abc is congruent to adc
Click here to see answer by Mr. Feliz(12)

Question 246288: I have a confusing proof.
GIVEN: 1)triangle ABC is isosceles.
2)line segment BD is a median to base AC
PROVE: line segment BD is also an altitude

Click here to see answer by Theo(3464)

Question 246625: i have no idea how to write proofs for anything!!!!help!!!?
Click here to see answer by dabanfield(803)

Question 246662: Given: x to the second power +8 is less than or equal to 12
Prove: x is less than or equal to 2
Click here to see answer by edjones(7569)

Question 246805: Given: Parallelogram MATH with diagonal MT
Prove: Mt bisects angle AmH and angle ATH
Click here to see answer by solver91311(16897)

Question 246915: where can i get geometry old regents exams since 1990 that has proof problems or questions in them
Click here to see answer by richwmiller(9143)

Question 246872: Write a two column proof. Given: line LJ bisects triangle LKJ and triangle LMJ. Prove: triangle LKJ = triangle LMJ
Given- angle K and angle M are right angles.
I don't understand two column proofs.
What I have so far is this:
LJ=LJ Given
angle K is a right angle given
angle M is a right angle given

and I think the ending is the HL postulate.
Thank you so much!
Click here to see answer by Jeff Gordon(65)

Question 247498: Given: DB is perpendicular to AC, B is the midpoint of AC.
Prove: DA is congruent to DC
Click here to see answer by richwmiller(9143)

Question 247838: how do i know which order the proofs need to be in. it confuses me so much. i seriously do not understand.
Click here to see answer by richwmiller(9143)

Question 247838: how do i know which order the proofs need to be in. it confuses me so much. i seriously do not understand.
Click here to see answer by stanbon(57399)

Question 248076: how to write a two column proof of Theorem 4.2
Click here to see answer by richwmiller(9143)

Question 248088: state the third angle theorem if two angles of one triangle are congruent to two angles of a second triangle, then the third angles of the triangles are congruent
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Question 248072: Given: angle ABC is right angle
angle CBE is right angle
Prove : angle ABC is congruent to angle CBD

Click here to see answer by richwmiller(9143)

Question 248317: I need to make a 2 column proof for geometry to prove that, the diagonals of a rectangle are congruent. My only given statement, is that 'abcd' is a rectangle. What steps do I need for the proof to prove it true? Thanks so much.
Click here to see answer by richwmiller(9143)

Question 248692: Hi! I am really stumped on this geometry question. I will try my best to explain the problem without a diagram.
I am asked to write a two-column proof. Given is isosceles trapezoid ABCD, with the top and bottom bases (AD and BC) being parallel. There is a line extending from angle D to point E, point E appearing to be the midpoint of BC. This line makes the left leg of triangle EDC, and it is given that DE is congruent to DC. I have to prove that ABED is a parallelogram.
I have tried several methods, and just when I think I'm solving the problem, I realize something is missing. I would really appreciate your help. Thank you.
Click here to see answer by richwmiller(9143)

Question 248709: Which do you prove with a geometric proof?
A. experiments
B. opinions
C. postulates
D. theorems
Click here to see answer by jim_thompson5910(28598)

Question 250145: Given: FA // DE FA = DE AB = CD prove angle F = ANGLE E TWO TRIANGLES I DONT KNOW HOW TO DO THE PROOF
Click here to see answer by richwmiller(9143)

Question 250282: GIVEN: line AB is congruent to line DE. B is the midpoint of line AC. E is the midpoint of line DF.
PROVE: line BC is congruent to line EF
Click here to see answer by richwmiller(9143)

Question 250332: well, i have no specific= question. I just CANNOT understand the proofs in geometry, be it with triangles, lines, etc. Can anyone give me a clue as to how to understand them?
Click here to see answer by richwmiller(9143)

Question 250369: Given: 5(x + o.5) = -1.5 (x + 3x)
Prove by solving x = -5/22
show each step taken please.
Click here to see answer by checkley77(12569)

Question 249738: Use the coordinate plane, the figure below, coordinate proof strategies, and the lengths and slopes of and to verify this theorem:
Given: QUAD is a quadrilateral.
P, G, R, M are the midpoints of the sides
Prove: The polygon formed by joining adjacent midpoints of a quadrilateral is a parallelogram.
http://i1021.photobucket.com/albums/af336/mattconley2011/1.jpg
Click here to see answer by math1745(1)

Question 250778: can you give me an example of a proof argument of the equilateral triangle symmetry theroem
Click here to see answer by stanbon(57399)

Question 250767: Hi I am a geometry student in need of dire help. I am really confused with a couple of proofs here is are a few examples. If you could get back to me with a 2 column proof for them I would be extremely grateful.
1) ABCD is a parallelogram with angle A acute. A line from B is perpendicular to AD at E, and a line from D is perpendicular to BC at F. AF cuts BE at H, and CE cuts DF at K. Prove EHFK is a parallelogram

2) E is any point on side DC of parallelogram ABCD. DC is extended through C to F, so CF=DE. AE is extended through E to G so EG=AE. Prove EGFB is a parallelogram

Click here to see answer by dabanfield(803)

Question 251104: Given: LV is perpendicular to OE; X is the midpoint of OE
Prove: OV is congruent to VE

Click here to see answer by richwmiller(9143)

Question 251104: Given: LV is perpendicular to OE; X is the midpoint of OE
Prove: OV is congruent to VE

Click here to see answer by solver91311(16897)

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