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If a wire is bent into the shape of a square, then the area of the square is 81 sq. cm. When the wire is bent into a semi-circle will be (in cm2)

(a)

22

(b)

44

(c)

77

(d)

154



Question ID - 52457 | SaraNextGen Top Answer

If a wire is bent into the shape of a square, then the area of the square is 81 sq. cm. When the wire is bent into a semi-circle will be (in cm2)

(a)

22

(b)

44

(c)

77

(d)

154

1 Answer
127 votes
Answer Key / Explanation : (c) -

Length of each side of the square =  = 9 cm.

 

Length of the wire =  cm.

 

 cm.

 

Area of semi-circle =

127 votes


127