Question

For a wheel with circumference 44cm, match the following parameters.

• A. 154
• B. 14 cm
• C. 7 cm

Answer 1

Given, circumference = 44cm
Circumference $=2\pi r$
$44=2\times \frac{22}{7}\times r$
$\Rightarrow r=7cm$
$d=2r=2\times 7=14cm$
Area = $\pi \times r^2$
=$\frac{22}{7}\times 7^2$ =$154c{m}^2$