Find the surface area of the come in terms of pi.

first option

Step-by-step explanation:

 The formula for calculate the surface area of a cone is the shown below:

Where: s is the slant height and r is the radius.

As you can see in the figure the slant height and the radius are:

 s=18 cm and r=6 cm

Therefore when you substitute the values shown above into the formula, you obtain that the result is:

cm²

 sq. cm.

Step-by-step explanation:

Surface Area of cone is given by the formula  

The diameter is given as 12, hence radius (r) is half of that, 6.

The slant height (l) is given as 18

Plugging all the values into the formula, we get:

First answer choice is right,   sq. cm.

step-by-step explanation:

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.