Find the circumference of the circles, given that:
(a) radius - 21 mm
(b) diameter- 14cm
Answers
Answered by
15
Answer:
132
Step-by-step explanation:
C=2πr
C=2×22/7×21
C=132
Answered by
17
Answer:
132 mm and 44 cm
Step-by-step explanation:
Given,
(i) Radius = 21 mm
So now,
Putting the formula of circumference
(2*π*r)
=> 2*22/7*21
=> 2*22*3
=> 132 mm
or 13.2 cm
(ii) Diameter = 14 cm
here putting the value of circumference
(i.e- π*d)
=> 22/7*14cm
=> 22*2
=> 44 cm
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