Answer:
D)
Step-by-step explanation:
D because formula for circumference is pi x diameter or pi x r.so you multiple 3.14 by the diameter which is times 2 of the radius that will give you 16 .just multiple 3.14 by 16 which gives you 50.24
B) 25.12
Use the formula C = 2πr
x = 14
110 + 5x = 180
-110 -110
5x = 70
divide by 5 on both sides
to find y add 70 + 40 + missing angle = 2y
missing angle is 70 because 70+40+70 = 180
so 2y = 110
y = 55
I hoped this helped!
