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Citrus2011 [14]
3 years ago
14

If a wheel has a diameter of 15 centimeters what is the area of the wheel nearest centimeter

Mathematics
1 answer:
maw [93]3 years ago
4 0

Answer:

<h2>A = 177 cm²</h2>

Step-by-step explanation:

A diameter is two times longer than a radius. Therefore, if the diameter

d = 15cm, then the radius r = (15cm) : 2 = 7.5cm.

The formula of an area of a circle:

A=\pi r^2

Substitute:

A=\pi(7.5)^2=56.25\pi\ cm^2

\pi\approx3.14

Then

A\approx(56.25)(3.14)\approx177\ cm^2

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