Question

A piece of wire is bent in the shape of an equilateral triangle of side 4.4cm.If this wire is rebent to form of a circle.Find the radius and the area of the circle.​

Answer 1

Answer:

Perimeter of triangle = Perimeter or circumference of circle

4.4+4.4+4.4= 2πr

13.2 =2πr

r = 13.2/2π

r= 6.6*7/22

r= 0.3*7

r= 2.1

area of circle =πr^2

= 22*2.1*2.1/7

= 22*0.3*2.1

= 46.2*0.3

= 13.86cm^2

Step-by-step explanation:

Since we are using the same wire the length of the wire will remain the same even though we from different shapes out of that wire but area will change according to shape. Thus, the perimeter of every shape will be the same.

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