Answer:
d
Step-by-step explanation:
Answer:
Step-by-step explanation:
Area of circle = 78.5 in²
πr² = 78.5
3.14*r² = 78.5

r = 5 in
Answer:
57.5 degrees
Step-by-step explanation:
Assuming this is a triangle
a is adjacent is ∠B
b is opposite of ∠B
Use the inverse tangent equation: 
This equals to 57.52880771
A = 11300 cm<span>2
</span>
Hope this helps!
The answer is 31 add 14 and 7 then subtract 52 by the 21 thus giving 31