Okay it’s the right answer
Answer:
The measure of angle y is 90°
Step-by-step explanation:
we know that
The inscribed angle is half that of the arc it comprises.
so
m∠y=(1/2)[180°] -----> because the diameter divide the circle into two equal parts
so
m∠y=90°
m∠x=(1/2)[148°]
m∠x=74°
Should be... x ÷ -1.5 = 21
Pythagoras theoram? use it here!
That is,
H² = 15² + 4²
H² = 225 + 16
H = √241
H = 15.5
You should opt for 15.5
P.S: Best of luck for your test! ;))