7-4 Proportional Parts of Triangles

Solve for x.

Solve for x.

Solve for x.

Solve for x by factoring. (Remember that you will not have lengths that are negative.)

Determine if  $\overline{ST}\ \parallel\ \overline{PR}$  .  If yes, what theorem justifies your answer?

• Not Similar

• Yes, Triangle Proportionality Theorem

• Yes, Triangle Proportionality Converse

• Yes, Triangle Midsegment Theorem

• Yes, Proportional Parts & Parallel Lines Theorem

Determine if $\overline{ST}\ \parallel\ \overline{PR}$ . If yes, what theorem justifies your answer?

• Not Similar

• Yes, Triangle Proportionality Theorem

• Yes, Triangle Proportionality Converse

• Yes, Triangle Midsegment Theorem

• Yes, Proportional Parts & Parallel Lines Theorem

Determine if $\overline{ST}\ \parallel\ \overline{PR}$ . If yes, what theorem justifies your answer?

• Not Similar

• Yes, Triangle Proportionality Theorem

• Yes, Triangle Proportionality Converse

• Yes, Triangle Midsegment Theorem

• Yes, Proportional Parts & Parallel Lines Theorem

Find GH.

Find the perimeter of $\Delta MNP$   .

Use the Triangle Midsegment Theorem to solve for x.