Answer:
b
Explanation:
10 divided by 2=5 radius
to get area = Radius^2 x pi
5x5x3.14= 78.5 square units
Hope this helped!
first, figure out the radius. the radius is the 1/2 of the diameter, so 5. in the equation, the formula is pi x radius^2. so 5^2 is 25. then 25x3.14 is b, and we have our answer.
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