Question

If the circumference of a circle is 44 cm, find the area of the circle. (Take $\pi =\frac{22}{7}$)

• A. 134 cm${}^2$
• B. 154 cm${}^2$
• C. 77 cm${}^2$
• D. 117 cm${}^2$

Answer 1

The correct option is B 154 cm${}^2$

Given: Circumference = 44 cm

Circumference of the circle = 2$\pi$r
44 = $2\times \frac{22}{7}\times r$
r = 7 cm

Area of the circle = $\pi r^2$
Area of the circle = $\frac{22}{7}\times 7\times 7$
Area of the circle = 154 cm${}^2$