The area of the circular base of a cylinder is 36π square units. The height of the cylinder is 2 units. What is the lateral area of the cylinder? Express the answer in terms of π. a.12π square units b.24π square units c.60π square units d.72π square units

Respuesta :

We are asked to solve for the lateral area of the cylinder and the formula is shown below:
Lateral area = 2*pi*r*h

We are also given with the area of the base such as:
Area of the base = 36pi square units
Area of the base = pi*r²
Solving for radius:
36pi = pi*r²
r=6 inches

Solving for the lateral area when height is 2 units:
Lateral area = 2*pi*6*2
Lateral area = 24pi inches²

The answer is the letter "B" 24 square units.

The lateral area of the cylinder which has base area of 36π  and the height of 2 units is 24π square units.

What is the lateral area of cylinder?

Lateral area of a cylinder is the sum of the area of each face (triangular). In the lateral area of the cylinder, the base is area does not consider. It can be calculated using the following formula.

[tex]A=2\pi rh[/tex]

Here, (h) is the height of the cylinder and (r) is the radius.

The area of the circular base of a cylinder is 36π square units. The area of circular base is twice the product of π and square of radius. Thus,

[tex]A_b=\pi r^2\\36\pi=\pi r^2\\r=\sqrt{36}\\r=6\rm\; units[/tex]

Thus, the radius of the cylinder is 6 units. The height of the cylinder is 2 units. The lateral area of this cylinder is,

[tex]A_l=2\pi (6)(2)\\A_l=24\pi[/tex]

Thus, the lateral area of the cylinder which has base area of 36π  and the height of 2 units is 24π square units.

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