Acone has a radius of 3 and a height given by the expression 2a. which expression represents the volume of the cone? 2aπ units3 4a2π units3 6aπ units3 24aπ units3

C.  

Step-by-step explanation:

We have been given that a cone has a radius of 3 and a height given by the expression 2a.

To find the volume of our given cone we will use volume of cone formula.

Upon substituting our given values in volume formula we will get,

Therefore, the expression represents the volume of our given cone and option C is the correct choice.

b

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

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