find the ratio between the circumference of a circle to its diameter . if its radius is 14 cm
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1
so radius = r = 14 cm
so circumference = 2πr = (2 × 22 × 14)/7
= 88 cm
so diameter = 2r= 2 × 14 = 28 cm
so ratio = 88 : 28
= 22 : 7
Similarly,
circumference = 2πr = 2r × π
Diameter = 2r
Ratio = 2r × π : 2r
Cancelling the 2r
Ratio = π : 1 = 22 : 7
so circumference = 2πr = (2 × 22 × 14)/7
= 88 cm
so diameter = 2r= 2 × 14 = 28 cm
so ratio = 88 : 28
= 22 : 7
Similarly,
circumference = 2πr = 2r × π
Diameter = 2r
Ratio = 2r × π : 2r
Cancelling the 2r
Ratio = π : 1 = 22 : 7
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Answered by
0
ratio of circumference and diameter is = 2πr : 2r
= 2πr/2r
= π
= 22/7
= 22 : 7
note:the value of π is not exactly equal to 22/7
= 2πr/2r
= π
= 22/7
= 22 : 7
note:the value of π is not exactly equal to 22/7
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