An area and a perimeter in the same problem means you are working with a 3D shape as such as a rectangular prism
We know, Area of a Semi-circle = πr² / 2
Here, r = 21/2 = 10.5
So, A = 3.14 * (10.5)² / 2
A = 346.185 / 2
A = 173.09 Ft²
In short, Your Answer would be 173 Feet²
Hope this helps!
Answer:
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im sure you know what this means
Step-by-step explanation:
I don’t know the answer I can’t see the question that you are asking for
