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.

Diameter is 9m and the outer part of the circle is 2m

Will give brainiest

22\pi m

Step-by-step explanation:

Given:

Diameter is 9 m and the outer part of the circle is 2 m

To find: difference between the circumference of the outer circle and the circumference of the inner circle

Solution:

Diameter of inner circle = 9 m

Radius of the inner circle (r)  

Circumference of the inner circle

As outer part of the circle is 2 m,

outer radius (R) = r + 2 = 4.5 + 2 = 6.5 m

Circumference of the outer circle

So,

difference between the circumference of the outer circle and the circumference of the inner circle m

step-by-step explanation:

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the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.