Answer:

Step-by-step explanation:
ΔPQS, ΔRQP and ΔRPS are similar (AA). Therefore the sides are in proportion:

We have:

Substitute:
<em>cross multiply</em>

Use the Pythagorean theorem:

Substitute:

Answer:
No
Step-by-step explanation:
Just lol, it up and the you will be fine.
6/10 of an inch= 0.6
7 (times) 0.6 (equals) 4.2
70 + 1 = 71
Hope I Helped!