Question

. A piece of wire 132 cm long is bent into the form of a circle. What is the diameter of the circle?​

Answer 1

Answer:

Step-by-step explanation:

2πr=132cm

2*22/7r=132cm

6.28r=132cm

r=132/6.28cm

r=21.01cm

Answer 2

Step-by-step explanation:

$\huge \sf{ \colorbox{cyan}{answer}}$

Let,

• the radius of the circle is r.cm., its circumference is 2π.r.cm.

• Perimeter ( circumference) of the circle = 132.cm.

• 2.π.r = 132.

or,

• r = (132×7)/(2×22).cm. = 21. cm.

• $\sf \fbox{Diameter = 2.r = 2×21 = 42.cm. }$