Question
A sector of a circle has a central angle of 90°. If the
radius of the circle is 10 cm, what is the area of the sector?Solution
The area of a sector is given by the formula: Area of Sector = (θ/360) × πr² Where θ is the central angle in degrees, and r is the radius of the circle. Substitute the given values: Area of Sector = (90/360) × 22/7 × 10² Area of Sector = (1/4) × 22/7 × 100 Area of Sector = 78.57 cm² Correct Option: d) 78.57 cm²
More Circle Questions
15.99% of 549.99 ÷ 11.17 = ? ÷ 20.15
74.91% of 639.95 – 599.98% of 45 + 119.987 = ?
(4.88 × 5.76)2 - ?2 = 39.89 × 19.86
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exactvalue.)
(1800.23 ÷ 29.98) + (816.32 ÷ 23.9) + 1634.11 = ?
1449.98 ÷ 50.48 × 10.12 = ? × 2.16
36.05 × 5.02 + 12.052 = ? + 9.09 × 4.04Â
(31.9)3 + (34.021)² - (16.11)3 - (42.98)² = ?
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