Answer:
176.8
Step-by-step explanation: first you have to find the radius by finding the half of 15 which is calculated to be 7.5
and the formula to find the area is A=
Correct me if I’m wrong but I believe the answer is 48
R = d/t is the answer. Hope this helped
X= 180 - 157
= 23
Therefore, X is 23 degrees. A straight line has an angle of 180 degrees, so subtracting the given angle would give you X.