1 Answer

Ahu · Answer 1 · 2020-08-15T22:40:07+0000

1. The area of a circle is calculated using the formula:

$Area = \frac{\pi \: {d}^(2) }{4}$

The diameter is d=11 feet.

This implies that,

$Area = \frac{\pi * {11}^(2) }{4}$

$Area = (121\pi)/(4) = 95.03 {ft}^(2)$

2. For this second question the diameter is d=10.5 feet.

We substitute into the formula to get;

$Area = \frac{\pi * {10.5}^(2) }{4}$

$Area = (441\pi )/(16) = 86.60 {in}^(2)$

3. The area of a circle is given by the formula,

$Area =\pi \: {r}^(2)$

where the radius is r=6.3

This implies that,

$Area =\pi \: {(6.3)}^(2)$

$Area =36.69\pi = 124.69 {cm}^(2)$

4. The given circle has a radius of 3.25 yards.

$Area =\pi * {3.25}^(2)$

$Area =10.5625 \pi = 33.18 {yd}^(2)$

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