SSC CGL 2022 PYQ — Question 61

The correct answer is Option 3 i.e. 4.186 cm².

Radius of sector = 4 cm

Central angle = 30°

Area of sector = ${\theta \over 360} \times \pi r^2$

According to the given question,

Area of sector = ${30 \over 360} \times {22 \over 7} \times (4)^2$

⇒ Area of sector = ${4 \over 3} \times {22 \over 7}$

⇒ Area of sector = 4.186

Hence the area of the sector is 4.186 cm².