In the diagram, what is the perimeter of polygon $PQRST$?

24

Step-by-step explanation:

PQ is equal to QR, therefore QR=3

Draw a perpendicular line down from R to line TS to form a triangle and since PT=6, the height of the right angle triangle would be 3.

The base of the right triangle would be 7-3=4. Using pytag. theorem

Therefore RS=5.

So now we can sum up everything: PQ+PT+TS+RS+QR= 3+6+7+5+3=24

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0