aniyahcohen55
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Sagot :

Answer:

a. the diameter is 127.324 yards

b. The area is 12732.385 yards^2

Step-by-step explanation:

The circumference of the circle is 400, and to get circumference from diameter, multiply it by π, so we divide by pi to get the diameter. 400/π = 127.324

The area of a circle is πr^2. To find r, or radius, divide the diameter by 2 to get 63.662. So it is 63.662^2π. 63.662^2 = 4052.844, so 4052.844π, and now we get 12732.385
127.32
divide the diameter (400) by pi
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