Question

If the radius of a circle is 21 cm, the area of the circle is .

• A. 1386 cm${}^2$
• B. 1665 cm${}^2$
• C. 996 cm${}^2$

Answer 1

The correct option is A 1386 cm${}^2$

Given: Radius = 21 cm

Area of the circle = $\pi r^2$
Area of the circle = $\frac{22}{7}\times 21\times 21$
Area of the circle = 1386 cm${}^2$