Question

Find the measure of ZSTV.
S
3b
15b + 18
U
T

Answer 1

<stv=153

Explanation:

stu+stv=180 (being a straight angle)

3b +15b+18=180

18b=180-18

b=162/18

b=9

now

<stv=15b+18

=15 × 9 +18

=135+18

=153

<stv=153°