How do you find number 5 questions a and b? I’m very confused.

Answer:
A = 28.27
B = 113.1
Step-by-step explanation:
Use pi to solve this question
pi is 3.14. so, we can count the squares for the radius, which it seems for a is 3, and b is 6. the pi formula for area is (3.14)r^2
A = 28.27
B = 113.1
hope this helps!