Question
Given a circle with a diameter of 56 cm, let the area of
the circle be represented as “x” sq cm and the circumference as “ y” cm. Calculate the value of x − y .Solution
Radius of the circle = 56/2 = 28 cm Area of a circle = 22/7 x 28 x 28 = 2464 cm2 Circumference of a circle = 2 x 22/7 x 28 = 176 cm Required value = 2464 - 176 = 2288 Hence, option c.
More Mensuration Questions
[{(√785) % of 449.85}/(35.89 × 7.14 + 849.89 ÷ 5.12 + 199.78% of 41.09)] = ( 1/? )
? = 340.24 + 1001.97 – 6.992
(31.9)3 + (34.021)² - (16.11)3 - (42.98)² = ?
? = 22.08 + 13.99 × 22.07
(13.156)2 + (3.945)2 + (5.903)3 = ?
1924.87 + ? – 1805.92 = 1623.68 – 1417.34
? = 685.24 + 1024.97 – 9.992
- 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.)
59.98% of 3200 + 50.28% of 2800 = 89.99% of 2800 + ?
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