Question

if the circumference of a circle is 154cm ,find it's radius and also find it's area
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Answer 1

Answer:

the rule for circumference of a circle = 2\piπ radius

to find the radius= 154=2*22/7*r

154*7=2*22*r

1078 =44*r

r=1078/2

r=44/2

538/22

radius=24.5rule for are of a cirlce =\piπ r^2

=22/7*24.5*24.5

area= 1886.50m^2