Formula for the area of a circle: A = pi x r^2
We are given the diameter in this problem, but we need the radius. To find the radius, we will need to divide the diameter by 2.
8 / 2 = 4
A = pi x 4^2
A = pi x 16
A = 16pi cm^2
Hope this helps!! :)
Answer:
(1.) 50 (2). 112.5
Step-by-step explanation:
multiply the both sides and then divide ( for each one)
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