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Tutors Answer Your Questions about Geometry proofs (FREE)
Question 51742This question is from textbook Geometry
: Write a two-column proof
Given: G is between F and H
Given: H is between G and J
Prove: FG + GJ == FH + HJ
I have the given and FG + GH = FH and GH + HJ = GJ because of addition of line segment.
Where do I go from thereThis question is from textbook Geometry
Click here to see answer by THANApHD(104)   |
Question 52484: How do i prove that given triangle ABC with the altitude from B of the same length as the altitude from C, then the triangle must be isosceles.
I can prove this question without it saying altitude that is where i am confused.
thank you
Nadia
Click here to see answer by venugopalramana(3286)  |
Question 53372: Hi i've been trying to solve this question for a couple of days but I just cant seem to be able to figure it out. The vertices of a triangle are
A(-3,1,2), B(1,-3,-1), and C(3,-1,-1)verify that the triangle is a right-angled triangle.
Click here to see answer by Edwin McCravy(2920)  |
Question 54569This question is from textbook Geometry
: Could someone explain the difference between the Substitution property and the Transitive property? If you state that the measure of angle "A" is equal to 90 degrees, and the measure of angle "B" is equal to 90 degrees, then the measure of angle "A" = measure of angle "B" is proved by which property?This question is from textbook Geometry
Click here to see answer by Born2TeachMath(20) |
Question 54930This question is from textbook
: Determine whether statement (3) follos from statements(1) and (2) by the Law of Detachment or the Law of Syllogism. State which law.
(1) If a whole number is even, the its square is divisible by 4.
(2) The number I am thinking of is an even whole Number
(3) The square of the number I am thinking of is divisble by 4.
(1) If a football team win its homecoming game, the Conrad will attend the school dance the following Friday.
(2) Conrad attends the school dance on Friday.
(3) The football team won the homecoming game.This question is from textbook
Click here to see answer by Nate(3495) |
Question 57030This question is from textbook 
: Given: L is the midpoint of line JN, line PJ is congruent line QN, line PL is congruent line QL, angle PKJ and angle QMN are right angles
Prove: triangle PKJ congruent triangle QMNThis question is from textbook
Click here to see answer by venugopalramana(3286) |
Question 58867: 4. Prove that the sum of the interior angles of a triganle equals 180 degrees without using that theorem.
Given: line r is parrel to line s
Prove: m<1 + m<2 + m<3 = 180 degees
http://img244.imageshack.us/img244/7227/photo18ti6.jpg
Click here to see answer by venugopalramana(3286) |
Question 59934: Write a coordinate proof (( ^ = Triangle)) ((~ = congruent to))
Given--> Coordinates of TRIANGLE[^]NPO and ^NMO
Prove--> ^NPO ~ NMO
y
P(0,2h)|\
| \
| \N(h,h)
| / \
O(0,0) |/___\M(2h,0)__x
^PNO is same shape of triangle as ^MNO i just didn't no how to draw it.
My Proof so far--
Statements | Reasons
1) Coordinates|
of ^NPO & ^NMO| 1) Given
2)Do i need to| 2) Reflexive Property
prove NO~NO? |
3) NO bisects | 3) Definition of an angle bisector?
4)^NPO & ^NMO | 4) Distance formula
have same |
lenght |
5) ^NPO~^NMO | 5) SSS congruence postulate
--^what am i doing wrong?
Click here to see answer by venugopalramana(3286) |
Question 59941: I need to prove that verticle angles are congruent.
They gave me a diagram that shows 2 intersecting lines .
the < on the left it labeled 1
the < on the right is labeled 3.
and the < on the top is labeled 2.
Click here to see answer by jenrobrody(19) |
Question 60904: If a line through the center of a circle is perpendicular to a chord, then the line also bisects the chord.
I have some work done with a drawing on sketchpad, but I am not sure where to even start with writing my proof. They make no sense to me since I have not had a good teacher to teach me proofs. Thank you
Click here to see answer by asha(30) |
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