Question

The circumference of a circle is 44 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 2:1, respectively.

A 302 Correct Answer Incorrect Answer
B 392 Correct Answer Incorrect Answer
C 390 Correct Answer Incorrect Answer
D 395 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Let the radius of the circle = ‘r’ cm Circumference of the circle = 2πr 44 = 2 × (22/7) × r r = 7 Radius of the circle = 7 cm Length of the rectangle = 7 × 4 = 28 cm Breadth of the rectangle = (28/2) × 1 = 14 cm Area of the rectangle = 14 × 28 = 392 cm2

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