Question

Triangles ACB and DFE are shown below.
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?

Reason #1 - Reflexive Property of Equality
Reason #2 - SSS Postulate

Reason #1 - Substitution
Reason #2 - SAS Postulate

Reason #1 - Substitution
Reason #2 - SSS Postulate

Reason #1 - Reflexive Property of Equality
Reason #2 - SAS Postulate

Answer 1

first one looks like subsitution

Answer 2

substitution*

Answer 3

and the second looks like SSS because at the beginning we have 2 congruent segments by construction and a third set of sides are shown to be congruent as well

Answer 4

wow how do u know all this stuff! i hate geometry why cant it be easy as algebra was! lol

Answer 5

just lots and lots of practice lol

Answer 6

don't worry, you'll get it eventually

Answer 7

thanks:)

Answer 8

sure thing

Answer 9

@jim_thompson5910 so the answer is b

Answer 10

??

Answer 11

no, it looks like choice C

Answer 12

really.. oook

Answer 13

because choice C has the SSS property

Answer 14

ohhh thats what i meant , silly me

Answer 15

i gotcha

Answer 16

hehehe