Question

the circumference two concentric rings are are 88 cm and 66 cm respectively. the width between the ring is ??​

Answer 1

Answer:

C1 2TR

88 2* 22/7* R

R 88 7/2* 22

R 14 cm

C2 2r

66 2* 22/7*r

r= 66 7/22 2

r21/2

r= 10.5 cm

Width R -r

= 14-10.5

= 3.5 cm

Answer 2

Answer:

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Step-by-step explanation:

C1 = 2πR

88 = 2 * 22/7 * R

R = 88 * 7 / 2 * 22

R = 14 cm

C2 = 2πr

66 = 2 * 22/7 * r

r = 66 * 7 / 22 * 2

r = 21/2

r = 10.5 cm

Width = R - r

= 14 - 10.5

= 3.5 cm