Question

WILL MARK BRAINLIEST Which expression represents the surface area of the cone?

Answer 1

Answer:

The correct answer is third option

 π(3)(5) + π3²

Step-by-step explanation:

Points to remember

Surface area of cone = πrl + πr²

Where r is the radius of the cone and l is the slant height of cone

To find the correct answer

Here r = 6/2 = 3 in

l = 5 in

Surface area =  πrl + πr²

 =  π(3)(5) + π3²

The correct answer is third option

 π(3)(5) + π3²

Answer 2

Answer:

Third option

Step-by-step explanation:

By observing the diagram we can see that the diameter of circular base is 6 inches. The diameter will be sued to find the radius.

r = 6/2 = 3 inches

We can also see from the diagram that lateral height denoted by l is 5 in.

We know that the formula for surface area of a cone is given by:

$SA = \pi rl+\pi r^2\\Putting\ the\ values\ of\ r\ and \l\\SA = \pi (3)(5)+\pi (3)^2$

Comparing it with the options we get that the third option is correct ..