Question

If the radius of a circle is 3.12 inches, what is the approximate area if you use 3.14 for and the area is rounded to the nearest tenth?

Answer 1

Volume of a Circle formula: $V = \frac{4}{3} \pi r ^{3}$

$V = \frac{4}{3} \pi (3.12)^{3}$

$V = \frac{4}{3} \pi (30.371328)$

$V = \frac{121.485312}{3} \pi$

$V = 40.495104 * (3.14)$

$V = 127.15462656$

Round decimal to the nearest tenth:
127.1546256 ⇒ 127.2

Answer: V = 127.2 cubic inches

Answer 2

The answer is Answer: v = 127.2 inches
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