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

Tutors Answer Your Questions about Geometry proofs (FREE)

Question 312550: when you state line AC = line AC, what property are you using?
Click here to see answer by Alan3354(30993)

Question 313106: Im stuck on a Homework Problem:
Prove that the points W(-6, 2), X(-1, 3), Y(2, -3), and Z(-3, -4) represent the vertices of a parallelogram. Be sure to show all work and explain your answer to receive credit.
Can you help??

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Question 314306: construct AB so that AB = MN+OP
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Question 314662: What is the p and the q in If-Then statements,and in postulates?
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Question 314690: How do you prove segment EF is parallel to segment HI if you're given JG/HG = KG/IG and you also have <1 and <2 congruent. ( JG is over HG and KG is over IG, and doesn't mean divided by)
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Question 314893: how do you do circle proofs?
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Question 315094: how can i learn proofs really quickly
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Question 315319: what is the proof for proving the line segment from the centerpoint of a regular polygon bisects each interior angle of the polygon.
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Question 316074: Determine whether the statement is a tautology, a self-contradiction, or neither.( p ? q ) ? ( p ? ~ q)
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Question 317280: b is the midpoint of ac. prove ab + cd = ab
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Question 317280: b is the midpoint of ac. prove ab + cd = ab
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Question 319693: if a building has a roof with a 12 in 12 pitch roof and the building is 50 feet wide, how high is the peak of the roof from the attic floor?
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Question 320335: how do i usually write out statements if there is no statement??

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Question 320857: Given DE = FG EG = GH Prove DG = FH and GIVE REASONS!
Given QR = ST Prove QS = RT
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Question 321948: Times is a computer font. Explain whether or not the Times font with sizes 16 and 36 are similar.
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Question 322015: c(t)=100 x e ^-.000121t
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Question 322771: Choose the corresponding reason for each statement.
1. TR ≅ TY
2. TR=TY
3. ΔTRY is isosceles.
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Question 324750: given trapezoid abcd with diagonals ac and bd intercept at point e prove triangle dec is congruent to triangle bea
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Question 325100: Two parallel chords each have length 12, and the distance between them is 8. What is the radius of the circle.
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Question 325100: Two parallel chords each have length 12, and the distance between them is 8. What is the radius of the circle.
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Question 325100: Two parallel chords each have length 12, and the distance between them is 8. What is the radius of the circle.
Click here to see answer by Fombitz(13828)

Question 326266: given triangle ABC is congruent to triangle PQR, angle B is equal to 3v+1 and angle Q is equal to 6v-8, find measurement of angle B and angle Q
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Question 327232: Give the reasons for each step of the proof:
If a and b are negative numbers and ab^2
1. a and b are negative numbers
2. a•a>b•a
3. a•a>a•b
4. a•b>b•b
5. a•a>b•b
6. a^2>b^2
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Question 329574: if a man walks 4 km east then 5 km south, how far is he from the point where he started?
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Question 332692: what an equation of the line that contains the point (3,-1) and is perpendicular to the line whose equation is y = -3x+2
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Question 332688: I understand that "trisecting a given angle" is under compass -and -straight- edge- rules impossible. Is there a geometric proof that proves it can not be done? Please share with me.
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Question 333168: Can you help me with this problem: Find the counterexample of The square root of x is less than x.
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Question 335491: if AD bisects
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Question 335349: is it always, sometimes, or never true that if M is between A and B, then M bisects line segments AB
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Question 335772: Give reasons for the steps in the following proof:
If 3x + (-1)=0, then x= 1/3.
1. 3x+(-1)=0 1.Given
2. [3x+(-1)+1=0+1 2.
3. 3x+[(-1)+1]=0+1 3.
4. 3x+0=0+1 4.
5. 3x=1 5.
6. 1/3(3x)=1/3(1) 6.
7. (1/3*3)x=1/3(1) 7.
8. 1*x=1/3*1 8.
9. x=1/3 9.
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Question 336977: Is line segment -----> cd the same as ------> dc
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Question 337470: im a polygon all of my sides have the same meausre all of my angles have the same measure i have 3 sides what am i?
Triangle (or Trigon)
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Question 337516: Suppose B is the midpoint of AC. AB = 5x and BC = 3x + 4. Find AB. (Hint: Make a sketch and write an equation to solve.)

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Question 337472: i am polygon i am a quadrangle all of my sides are the same lenght none of my angles are right what am i ?
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Question 337598: Prove the nine-point circle.
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Question 338080: given: AD is perpendicular to FB, angle 1 is congruent to angle 3
prove: angle 2 is congruent to angle 4
this is the figure

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Question 338440: justify a statement with a property from algebra or a property of congruent statement
the first one is KL = MN and then MN = KL
i have no idea what this means i would love if someone could answer this with a full explanation if thats even possible with whats given
Click here to see answer by jim_thompson5910(28545)

Question 338491: Given: angle 1 is obtuse and angle 2 is acute.
Prove: angle 1 is congruent to angle 2.
In paragraph proof

Click here to see answer by fractalier(2101)

Question 339653: Prove: If an isosceles triangle has an altitude from the vertex to the base, then the altitude bisects the vertex angle.
Given: Triangle ABC is isosceles; Line segment CD is the altitude to the base segment AB
To Prove: Line segment CD bisects angle ACB
I really need some help with this.I have to write out a 2 column proof and a plan for the proof.I kinda have a proof but not sure if its right?
And I have no idea how to do a plan for the proof??? I don't remember learning that? PLEASE HELP me with the proof and the plan.
Click here to see answer by Edwin McCravy(8903)

Question 341155: What is the contrapositvie of ths statement: Nothin runs like a deere
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Question 342525: Is this a free online tutor site? If it really is then I have geometry question I need help on. My hw is to contrust truth table, (p^q) -> (p^q) and (p^q) -> ~p.
I know that if p is true then ~p is false and if p is false then ~p is true, other than that I know nothing about this part of high school geometry, I'm freshman and I need help, the teacher expect us to know everything.
Click here to see answer by jim_thompson5910(28545)

Question 343056: How do i determine my next steps after stating the given when proving theorems in geometry?
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Question 343130: Prove that if a and b are odd, their product it also odd.
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Question 343780: If m(∠6)= 8x-40 and m (∠4) = 6x+2 what are
the measures of angles 6 and 4?
I am completley lost on this, please help me! Thank you so much
Click here to see answer by jim_thompson5910(28545)

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