Question

Senha took a wire of length 44cm and bent it into the shape of a circle find the radius of that circle also find its area if the same wire is bent into the shape of a square,what will be the length of each of its sides ?which figure encloses more area the circle or the square ?(take r=22/7

Answer 1

Here is ur ans -
Length of the wire = 44 cm
Circumference of the circle = 44 cm
Let the radius of the circle be r cm .
So, 2πr = 44
or, 2×22/7 × r = 44
or, r = 7
So, radius of the circle = 7 cm .
Area of the circle = πr^2 = 22/7×7×7 = 154 cm .
Again since the same wire is used ..... so , the perimeter of the square= 44 cm .
Each side of the square = 44/4 = 11 cm .
Area of the square = 11×11 = 121 sq.cm
We can clearly see that area of the circle is greater than the area of the square .
Therefore the square enclose more area .
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