Question
The circumference of a circle is 88 cm and the length of
the rectangle is 4 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 7:11, respectively.Solution
Let the radius of the circle = βrβ cm Circumference of the circle = 2Οr 88 = 2 Γ (22/7) Γ r r = 14 Radius of the circle = 14 cm Length of the rectangle = 14 Γ 4 = 56 cm Breadth of the rectangle = (56/7) Γ 11 = 88 cm Area of the rectangle = 88 Γ 56 = 4928 cm2
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