Question

In ΔRST, the measure of ∠T=90°, the measure of ∠S=21°, and ST = 7.7 feet. Find the length of TR to the nearest tenth of a foot.

Answer 1

TR = 3 ft

Explanation:

tan x =
`(o)/(a)`

tan (21) =
`(o)/(7.7)`

7.7( tan 21) = o

2.9 = o

round up and you get;

3.0=o