Question

The area in $c{m}^2$ of a quadrant of a circle whose circumference is 22 cm is _______

• A. 16
• B. 15
• C. 9.6
• D. 155

Answer 1

The correct option is C

9.6

Circumference = 22 cm

Radius = $\frac{22}{\pi \times 2}$ = 3.5 cm

Quadrant subtends ${90}^{\circ }$

Area = $\frac{90}{360}$ × 3.14 × ${3.5}^2$ = 9.6 $c{m}^2$