if the circumference of a circle is33cm find its diameter
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Circumference of a circle = 2πr
33 = 2 * 22/7 * r
r = 21 / 4
r = 5.2 cm
d = 2r
d = 2 * 5.2
d = 10.4 cm
33 = 2 * 22/7 * r
r = 21 / 4
r = 5.2 cm
d = 2r
d = 2 * 5.2
d = 10.4 cm
rsriram:
how r = 21/4
your answer is even 21/4
solve 231/44
ok thanks
welcome
Answered by
1
circumference of a circle is 2*pi*r
33 = 2 * 22/7 * r
33 * 7/ 2 * 22 = r
r = 231 / 44
now x2 to get diameter
231 / 44 * 2 = 231 / 22
it is the answer
33 = 2 * 22/7 * r
33 * 7/ 2 * 22 = r
r = 231 / 44
now x2 to get diameter
231 / 44 * 2 = 231 / 22
it is the answer
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