Question

State true or false.

The area of a circle whose radius is $2.1$ m is $13.86m^2$

• A. True
• B. False

Answer 1

The correct option is A True

Area of a circle with radius $r$ is $\pi r^2$
Area of circle of radius $2.1\text{m}$

$=\pi r^2$

$=\frac{22}{7}\times 2.1\times 2.1$

$=13.86{\text{m}}^2$