The circumference of a circle is 22 cm. What will be the area of the quadrant of that circle?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e 9.625 cm2
| Understanding | Application |
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The circumference of a circle = 2πr The area of the quadrant of a circle = (1/4)πr2 |
The circumference of the circle ⇒ 2πr = 22 cm ⇒ 2 × (22/7) × r = 22 ⇒ r = 3.5 cm The area of the quadrant of the circle ⇒ (1/4)πr2 = (1/4) × (22/7) × 3.52 ⇒ 77/8 ⇒ 9.625 cm2 |