Question
The circumference of a circle is 55 cm and the length of
the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rectangle, if the ratio of length and the breadth of the rectangle is 14:5, respectively.Solution
Let the radius of the circle = βrβ cm Circumference of the circle = 2Οr 55 = 2 Γ (22/7) Γ r r = 8.75 Radius of the circle = 8.75 cm Length of the rectangle = 8.75 Γ 8 = 70 cm Breadth of the rectangle = (70/14) Γ 5 = 25 cm Area of the rectangle = 25 Γ 70 = 1750 cm2
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(16.25 Γ 24 + 7 Γ β36) Γ· 23 + 3.75 Γ 16 β 37 Γ 2 + 7.5
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5, 24, 47, 76, 113, ?.
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