Question
Area of sector of a circle whose radius is 21 cm, is
327.25 cm 2 . Find the angle subtend by arc at the center of circle. (Use π = 22/7)Solution
Area of sector = (A/360) X π X radius 2 , where 'A' is the angle subtended by arc at the centre
So, (A/360) X (22/7) X 21 2 Â = 327.25
Or, (A/360) X 1,386 = 327.25
Or, 'A' = 85
837.04 × 4.02 + 40.04% of 3049.98 – 3667.82 = ? 2 – 60.87
`sqrt623.798` × 24.034 +`sqrt403.898` × 17.907 =?
A wire is bent to form a square whose sides are of 132 cm. If the same wire is bent to form a circle, then find the area (in cm2) of the circ...
What will come in place of the question mark (?) in the following series?
50, 25, 25, ?, 75, 187.5
(14.66)2 + (343.84 ÷ 3.88 - 55.87) = ? + 91.23
- 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 exact value.)...
(27.08)2 – (14.89)2 – (22.17)2 = ?
What will be the approximate value of the following questions.
(√143.74 + 29.89% of 720.27) × (5/9 of 539.79) = ?
(124.99)² = ?
