Maths Puzzles Questions with Answers for Competitive Exams
Q :
Correct Answer : D
A copper wire is bent in the shape of a square of area 81 cm2. If the same wire is bent in the form of a semicircle, the radius (in cm) of the semicircle is (take π=22/7 )
(A) 126
(B) 14
(C) 10
(D) 7
Correct Answer : D