B.P.S.C. School Teacher 24.08.2023 (II)

The radius of a circle is 14 cm and the area of a sector is 102·7 cm2. The central angle of the sector is

a30⁰
b60⁰✓ Correct
c45⁰
dMore than one of the above
eNone of the above

Explanation

We know that– Area of sector = $\pi r^2 \frac{\theta}{360}$ $102.7 = \frac{22}{7} \times 14 \times 14 \times \frac{\theta}{360}$ $\theta = \frac{102.7 \times 45}{11 \times 7}$ $\theta \approx 60^\circ$ Diagram of a circle with radius 14cm, center O, and a sector with angle theta and area 102.7 cm² # Volume

general-science