Math, asked by Ayushraj80217, 10 months ago

Find the circumference of the circles, given that:
(a) radius - 21 mm
(b) diameter- 14cm​

Answers

Answered by vikashkumar199
15

Answer:

132

Step-by-step explanation:

C=2πr

C=2×22/7×21

C=132

Answered by jsfdlk
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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