Question

A statement and portions of the flowchart proof of the statement are shown.

Which reason should appear in the box labeled 1?

Linear Pair Postulate

Substitution Property of Equality

Angle Congruence Postulate

Ruler Postulate Angle

Answer 1

Answer:

Substitution Property of Equality

Step-by-step explanation:

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Answer 2

A proof is a mathematical statement that shows that a postulate is true. The statement that should appear in the box is:

Substitution Property of Equality

Given that:

$\angle PQR = 17^o$

$\angle RQS = 13^o$

Then, we have:

$\angle PQS = \angle PQR + \angle RQS$

Substitute the values of PQR and RQS

$\angle PQS = 17^o + 13^o$

Because the values of PQR and RQS are substituted to get: $\angle PQS = 17^o + 13^o$

This means that the reason that should appear in the box is: Substitution Property of Equality

Read more about proofs at:

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