Question
A square has its side length equal to the radius of a
circle. If the circle's area is 962.5 m², find the perimeter of the square.Solution
ATQ,
Let the radius of the circle be ‘r’ m
π × r² = 962.5
(22/7) × r² = 962.5
r² = 306.25
r = 17.5
Since the side length of the square = radius of the circle = 17.5 m
Perimeter of the square = 4 × 17.5 = 70 metres
Find the approximate value of Question mark(?). No need to find the exact value.
59.88% of 419.78 + (24.09 × 5) ÷ 3 – √(80.81) = ?
...( 22.01% of 899.80 ) × 15.99 = ? 2 + 27.98 × 2400 ÷ 800
- 44.83% of 799.88 + (84.12 X 14.98 ÷ 62.87) = ?² + 55.65
157.78% of 4820 + 92.33% of 2840 = ? + 115.55% of 1980
(804/65) ÷ (11/798) × (129/131) = ?
(23.99)2 – (17.99)2 + (1378.88 + 44.88) ÷ ? = 607.998
25.04 × 22.03 + 383.92 ÷ ? + 23.78% of 1499.98 = 926.08
20.11% of 119.99 + √80.97 ÷ 3.02 = ?
15.98% of 2199.9 = √? + 17.02% of 1799.97
(14.66)2 + (343.84 ÷ 3.88 - 55.87) = ? + 91.23