Mensuration Ques 14
Question
What is the area of a circle whose radius is equal to the side of a square whose perimeter is 112 metres?
(1) 176 sq. m.
(2) 2504 sq. m.
(3) 284 sq. m.
(4) 1956 sq. m.
(5) None of these
(Punjab & Sind Bank PO Exam. 23.01.2011)
Show Answer
Correct Answer: (5)
Solution: (5)
Side of a square $=\frac{\text { Perimeter }}{4}$ $=\frac{112}{4}=28$ metre
$\therefore$ Radius of circle $=28$ metre
$\therefore$ Area of circle $=\pi r^{2}$ $=\frac{22}{7} \times 28 \times 28=2464$ sq. metre
BETA
