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I need help please?

Question: What is the difference between the circumference of the outer circle and the circumference of the inner circle? Leave your answer in terms of π.

Choices:
A. 2π m
B. 4π m
C. 7π m
D. 18π m​

I need help pleaseQuestion What is the difference between the circumference of the outer circle and the circumference of the inner circle Leave your answer in t class=

Respuesta :

Gasaqui

Answer:

4π m

Step-by-step explanation:

we have:

the circumference of a circle = 2πr

r = radius

we have from the picture:

radius of the outer circle= 9 m  

the circumference of the outer circle = 2π(9) = 18π m

radius of the inner circle= 9 m  - 2m = 7m

the circumference of the inner circle = 2π(7) = 14π m

hence, the difference between the circumference of the outer circle and the circumference of the inner circle = 18π m - 14π m = 4π m

Answer: 4π m

Step-by-step explanation:

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