Question

of the two concerntric circles, the circumference of the outer circle is 132cm and the circumference of the second circle than the first??




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Answer 1

Answer:

(｡◕‿◕｡)➜(R-r) = (21-14) = 7 cm

Step-by-step explanation:

☞The difference between the outer circle and the inner circle (R-r) = 7 cm.

☞The circumference of outer circle is given as 132 cm.

☞Finding the radius of the outer circle,

2πR = 132

R = 21 cm

☞Now circumference of inner circle is given as 88 cm.

☞Finding the radius of inner circle,

2πr = 88

r = 14 cm

☞Now we have to find the difference between the radii

☞(R-r) = (21-14) = 7 cm

Answer 2

Answer:

Hope this attachment helps you dear....