## BIGDOG96 3 years ago Given: In ∆ACB, c2 = a2 + b2. Prove: ∆ACB is a right angle. Complete the flow chart proof with missing reasons to prove that ∆ACB is a right angle. Which pair of reasons correctly completes this proof? Answers Reason #1 - Transitive Property of Equality Reason #2 - SSS Postulate Reason #1 - Reflexive Property of Equality Reason #2 - SAS Postulate Reason #1 - Transitive Property of Equality Reason #2 - SAS Postulate Reason #1 - Reflexive Property of Equality Reason #2 - SSS Postulate

1. BIGDOG96

2. BIGDOG96

3. ganeshie8

f^2 = a^2+b^2 = c^2 => f^2 = c^2 whats above property ?

4. ganeshie8

is it transitive/reflexive ?

5. BIGDOG96

???

6. Tahamemon94

didnt get either !!!

7. BIGDOG96

I'm not the only one?...good

8. ganeshie8

check this and see if you can tell which property it is, http://www.mathwords.com/e/equation_rules.htm

9. BIGDOG96

Reflexive?

10. ganeshie8

reflexive says, a=a which property is similar to below : f^2 = a^2+b^2 = c^2 => f^2 = c^2

11. ganeshie8

isnt it like, If a = b and b = c then a = c. ?

12. BIGDOG96

Transitive Property

13. BIGDOG96

I should of gone with my gut.

14. ganeshie8

finally ! thats right :)

15. ganeshie8

we need to check what congruence postulate it is

16. BIGDOG96

I think it's SSS.

17. ganeshie8

thats right! we are given two sides are congruent already, and we have just proven the third side f is also congruent. so its SSS you're Awesome :)

18. BIGDOG96

No you are!

19. ganeshie8

lol okiee

20. BIGDOG96

Last question...yay

21. ganeshie8

okay lets do...