Question

The area (in cm²) of a sector of a circle of radius 21 cm cut off by an arc of length 22 cm is ______.

विकल्प

• 441

• 321

• 231

• 221

Answer 1

The area (in cm²) of a sector of a circle of radius 21 cm cut off by an arc of length 22 cm is 231.

Explanation:

Area of sector = `1/2 xx l xx r`

= `1/2 xx 22 xx 21`

= 231 cm²