sry725
sry725 sry725
  • 22-05-2020
  • Mathematics
contestada

I just can't figure this out! Can you help me?

I just cant figure this out Can you help me class=

Respuesta :

keziakh004
keziakh004 keziakh004
  • 22-05-2020

Answer:

31.4 cm

62.8 cm

Step-by-step explanation:

The radius of the inner circle is 5 cm.  The line from the edge of the outer circle to the edge of the inner circle is 5 cm.  Assuming that the center of the outer center is the same as the center of the inner circle, the radius of the outer should be 10 cm.

Use the formula for circumference since you have the radius.

Inner circle

C = 2πr

C = 2π(5)

C = 10π

C = 31.4 cm

Outer Circle

C = 2πr

C = 2π(10)

C = 20π

C = 62.8 cm

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