Question

if a wire is bent into the shape of square ,the area of the square is 49 cm2 .when the wire is bent into a semi circular shape ,find the circumference of the semi circle .(Take= 22/7)b

Answer 1

SOLUTION:-

Area of square =49 cm^2
=>side^2=49 cm^2
=>side =√49 cm^2
so, side =7 cm

Perimeter=4×side
=4×7 cm
=28 cm
So when it will bent into semi circular shape ,its circumference will be 28 cm

Answer 2

area of square =side square
49= side square
7= side
length of wire = perimeter of square
=4*7
=28cm
circumference of circle=length of wire
=28cm

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