Question

What is the length of SR?

18 units

9 units

12 units

15 units

Answer 1

Explanation:

RT = sqrt(20^2 - 16^2)

RT = sqrt(400 - 256)

RT = sqrt(144)

RT = 12

SR/ST= QR/QT

SR/12 = 20/16

SR = 12 x 20 / 16

SR = 240/16

SR = 15

answer is C.

15 Units