A piece of wire is bent in the shape of an equilateral triangle of side 4.4cm .if this wire is recent to form a circle, find the radius and area of the circle .
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We know that
perimeter of an equilateral triangle=3*side
so the perimeter of triangle or length of wire=3*4.4=13.2cm
length of wire=circumference of circle
13.2=2πr
13.2=2*22/7*r
2.1=r
and area of circle=πr²
area of circle=22/7*(2.1)²=13.86cm²
perimeter of an equilateral triangle=3*side
so the perimeter of triangle or length of wire=3*4.4=13.2cm
length of wire=circumference of circle
13.2=2πr
13.2=2*22/7*r
2.1=r
and area of circle=πr²
area of circle=22/7*(2.1)²=13.86cm²
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