Find the diameter of a circle, whose circumference is 12.56cm
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Answered by
4
Solution :
Let d is the diameter of the circle .
Circumference of the circle = 12.56cm
=> πd = 12.56 cm
=> ( 22/7 )d = 12.56
=> d = ( 12.56 × 7 )/22
=> d = 43.96/11 cm
or
=> d = 3.996 cm
••••
Let d is the diameter of the circle .
Circumference of the circle = 12.56cm
=> πd = 12.56 cm
=> ( 22/7 )d = 12.56
=> d = ( 12.56 × 7 )/22
=> d = 43.96/11 cm
or
=> d = 3.996 cm
••••
Answered by
1
circumference of a circle = 2πr
circumference of a circle = 2πr = 12.56
πr = 12.56 ÷ 2
πr = 6.28
r = 6.28 × π
r = [tex]\frac{6.28 × 7}{22}
r = [tex]\frac{43.96}{22}
r = 1.99
diameter = 2r
= 2 × 1.99
= 3.99
proof = 2π × 1.99
= 12.56
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