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) |
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(a) |
22 |
(b) |
44 |
(c) |
77 |
(d) |
154 |
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 |
Length of each side of the square = = 9 cm.
Length of the wire = cm.
cm.
Area of semi-circle =