Question

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

Answer 1

f^2 = a^2+b^2 = c^2

=>

f^2 = c^2

whats above property ?

Answer 2

is it transitive/reflexive ?

Answer 3

???

Answer 4

didnt get either !!!

Answer 5

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

Answer 6

check this and see if you can tell which property it is,

http://www.mathwords.com/e/equation_rules.htm

Answer 7

Reflexive?

Answer 8

reflexive says, a=a

which property is similar to below :
f^2 = a^2+b^2 = c^2

=>

f^2 = c^2

Answer 9

isnt it like,

If a = b and b = c then a = c.

?

Answer 10

Transitive Property

Answer 11

I should of gone with my gut.

Answer 12

finally ! thats right :)

Answer 13

we need to check what congruence postulate it is

Answer 14

I think it's SSS.

Answer 15

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 :)

Answer 16

No you are!

Answer 17

lol okiee

Answer 18

Last question...yay

Answer 19

okay lets do...