find the the circumference of the circle with the following radius 14cm , 28mm,21cm
Answers
Answered by
3
1.28cm.
2. 176.
3. 132.
2. 176.
3. 132.
Answered by
16
i) 14cm
Circumference: 2 x pi x r
= 2 x 22/7 x 14
= 2 x 22 x 2
= 88 cm
ii) 28mm = 2.8 cm
Circumference: 2 x pi x r
= 2 x 22/7 x 2.8
= 2 x 22 x 0.4
= 17.6 cm
iii) 21cm
Circumference: 2 x pi x r
= 2 x 22/7 x 21
= 2 x 22 x 3
= 132cm
Hope it will help you...
Circumference: 2 x pi x r
= 2 x 22/7 x 14
= 2 x 22 x 2
= 88 cm
ii) 28mm = 2.8 cm
Circumference: 2 x pi x r
= 2 x 22/7 x 2.8
= 2 x 22 x 0.4
= 17.6 cm
iii) 21cm
Circumference: 2 x pi x r
= 2 x 22/7 x 21
= 2 x 22 x 3
= 132cm
Hope it will help you...
Similar questions