Question

The area of a square is 24 sq. cm more than the area of a rectangle of length 12 cm and breadth 10 cm. What will be the area of incircle of the square?

A 8.5 cm Correct Answer Incorrect Answer
B 6.5 cm Correct Answer Incorrect Answer
C 7.5 cm Correct Answer Incorrect Answer
D 6 cm Correct Answer Incorrect Answer

Solution

The area of rectangle = l × b = 12 × 10 = 120 sq. cm The area of square = 120 + 24 = 144 sq. cm The side of square = √144 = 12 cm Radius of incircle of a square = side = 12/2 = 6 cm

Practice Next
×
×