The difference between circumference and diameter of a circle is 21.4 CM find the radius of the circle
Answers
Answered by
26
circumference of circle = 2 × pi× r
diameter = d= 2r
difference=
2pir - 2r= 21.4
taking 2r common
2r ( pi - 1) = 21.4
2r ( 3.14 - 1 ) = 21.4
2r( 2.14) = 21.4
4.28 r = 21.4
r = 21.4 / 4.28 = 5
therefore radius = 5 cm
hope it helps.
diameter = d= 2r
difference=
2pir - 2r= 21.4
taking 2r common
2r ( pi - 1) = 21.4
2r ( 3.14 - 1 ) = 21.4
2r( 2.14) = 21.4
4.28 r = 21.4
r = 21.4 / 4.28 = 5
therefore radius = 5 cm
hope it helps.
Answered by
2
answer: radius is 5 cm....
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