Question

please give me thanks and answer​

Answer 1

Given

• A piece of wire is bent in shape of a square of side 11 cm. it is rebent to form a circular ring.

To find

• Diameter of the ring

Solution

• Side of square = 11cm
• Perimeter of square = 4×11=44cm
• Circumference of Circle = 2×pi×r
• 44=2×pi×r
• 44÷2=pi×r Note: pi=22÷7 or 3.14
• 22=(22÷7)×r
• r=(7÷22)÷22
• r=7

So, Diameter = 7×2=14

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Answer 2

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Side of square = 11 cm

Perimeter of square = 4 × 11 = 44 cm

Circumference of circle = 2 × pi × r

44 = 2 × pi × r

44 ÷ 2 = pi × r Note: pi = 22 ÷ 7 Or 3.14

22 = ( 22 ÷ 7 ) × r

r = ( 7 ÷ 22 ) ÷ 22

r = 7

So, Diameter = 7 × 2 = 14.