Question
The circumference of a circle is 33 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 7:8, respectively.Solution
Let the radius of the circle = βrβ cm Circumference of the circle = 2Οr 33 = 2 Γ (22/7) Γ r r = 5.25 Radius of the circle = 5.25 cm Length of the rectangle = 5.25 Γ 4 = 21 cm Breadth of the rectangle = (21/7) Γ 8 = 24 cm Area of the rectangle = 24 Γ 21 = 504 cm2
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