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

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Geometry: Proofs in Geometry

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Question 238587: he is 21 years old

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Question 238587: he is 21 years old

Click here to see answer by scott8148(3382)

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(6042)

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 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(196)

Question 239628: Please help me with this proof.
Given: Triangle RST is congruent To triangle PSA
Prove: PART is a parallelogram.
Thank you.
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Question 239582: I need help with a proof?
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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 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 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:__________
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Question 238520: Write the inverse, converse and contrapositive of the following conditional, and state whether each is true or false
If your computer screen is turned on, then you will see pictures.

Click here to see answer by nyc_function(260)

Question 238515: Prove the following statement:
If a triangle has one obtuse angle, then the other two angles are acute.
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Question 238515: Prove the following statement:
If a triangle has one obtuse angle, then the other two angles are acute.
Click here to see answer by Fombitz(2113)

Question 237789: How do i write a proof to show that mesure of angle 1 is equal to the mesure of angle 3 if mesure of angle 2 equals mesure of angle 4.
I'm very bad at proofs.
i dont even know were to begin.
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Question 237651: do you solve proofs if i give you the given and what i need to prove?
Click here to see answer by College Student(196)

Question 237403: Prove triangle ABC is isoceles

Given: angle BAD is congruent to angle CAD
line segment AD is perpendicular to line segment BC

The answers that I originally gave were:
statement: BD is congruent to CD
reason: definition of a bisector
statement: angle BAD is congruent angle CAD
reason: ray AD is the bisector of angle BAC (given)
statement: AD is equal to AD
reason: reflexive property of equality
statement: triangle ABD is congruent to triangle ACD
reason: SAS of congruency of triangles
statement: angle ABD is congruent to angle ACD
reason: CACT

grading comments: While the effort is appreciated, the proof contains several errors. revise.
Click here to see answer by solver91311(5063)

Question 237402: Okay, so im doing Properties, Definitions, Theorems & Proofs in class and i need a bit of help.
How do you write a proof for this given:
∠FOG ≅ ∠IOH
(if the symbols dont show up, the first one is an angle sign, the second is a congruent sign, & the third is another angle sign).
Click here to see answer by solver91311(5063)

Question 237139: A bottled water company charges $8 per month for a water cooler and $5 per bottle b of water. Write an equation that represents the total cost C for monthly water service.

Click here to see answer by rfer(2680)

Question 237001: How many answers can there be for a proof? Say you put "definition of congruent angles" but the real answer is "vertical angle theorem", aren't they the same thing basically? yes, vertical angle theorem says that they share a vertex, but they are also congruent so shouldn't they both be accepted?
Click here to see answer by solver91311(5063)

Question 236863: The statement x(y+z) = xy + yz is an example of what type of property or equality?
Thanks for your help.
Click here to see answer by Earlsdon(4898)

Question 236863: The statement x(y+z) = xy + yz is an example of what type of property or equality?
Thanks for your help.
Click here to see answer by jim_thompson5910(13785)

Question 236672: Proof Assignment:
I Made the picture in Ms Paint, and posted it on photo bucket, this is my first time doing this, i hope one of my picture links works. Thanks again!
[URL=http://s971.photobucket.com/albums/ae197/marksc92/?action=view¤t=Proof1.jpg][IMG]http://i971.photobucket.com/albums/ae197/marksc92/th_Proof1.jpg[/IMG][/URL]

Click here to see answer by jim_thompson5910(13785)

Question 236678: Please help me with this proof:

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Question 236449: can you please help me? I don't know what to do
# of sides=?
measure of each exterior angle=?
measure of each interior angle-165
i know to find the interior angle you do 180(n-2)
Click here to see answer by jim_thompson5910(13785)

Question 235903: EG=13, ef=3
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Question 235779: I need help on solving a proof

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Question 235610: what is the quickest way to memorize all of the proofs in geometry?
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Question 235123: given: m<1 + m<2 = 180
Prove: a//b
Click here to see answer by Alan3354(6042)

Question 234739: please help me solve this proof
The formula learned for slope is m= y2-y1/x2-x1. use an algebraic proof to show that the slope can be claculated using the equation m= y1-y2/x1-x2
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Question 234687: What are all of the geometric proofs
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Question 234696: Can yu please help me solve this proof?
Given: prove: line MO is parralle to line RP
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Question 234599: Find the value of x so that angleABC is a right angle, given the following coordinates : A(x,7) B(-3,x) C(-1,0)
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Question 160235: ._____._________._____.
A B C D
Statements Reasons
AC=BD GIVEN
AC=AB+BC Def. of Betweenness
BD= BC+CD Def. of Betweenness
AB+BC=BC+CD SUBSTITUTION PROPERTY
BC=BC REFLEXIVE PROPERTY
AB=CD TRANSITIVE PROPERTY

Click here to see answer by smartguy101(5)

Question 234187: Hi I'm currently doing home school and I have geometry. My question is how do you know if it's SSS, ASA or SAS in a proof? I've been doing good answering the problems, but I've only been guessing. I want to understand it better, I'm going to do state testing next couple of months.
Thanks.
Click here to see answer by solver91311(5063)

Question 234105: If a quadrilateral has at least one right angle, then it is a rectangle
Click here to see answer by Alan3354(6042)

Question 231633: How do you solve ab/2 + ab/2 + cxc/2
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Question 233561: I am in the 10th grade. I havee Geometry. I would like to know when do you use definations: 1. Medium, 2. bisector, 3. perpendicular 4. altitude 5. perpendicular bisector
Click here to see answer by Alan3354(6042)

Question 233502: can a median be an altitude?
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Question 233169: how do i prove
if the diagnols of a parallelogram are congruent the parallelgram is a rectangle
Click here to see answer by Theo(667)

Question 232517: I'm trying to do the proofs myself because I know they are important, but I'm just having trouble moving from one step to another. It's hard for me to figure out what comes next after each statement. Do you have any tips for me?
Click here to see answer by ly12603(33)

Question 232123: how do i solve for a proof?
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Question 231650: given: 3(x-2)=15
prove: 7=x
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Question 229434: Given 10(x+3)=4x+6
prove x=-4

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Question 228974: 3(2x – 4) = 2x – 1

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