Will give brainliest. 50 points.. find the surface area of the cone in terms of pi .

so, the diameter of the cone is 12 cm, therefore its radius is 6 cm, keeping in mind its slant height is 18 cm.

The base area is given by

... A = π·r²

For a radius of 6 cm, this is

... A = π·(6 cm)² = 36π cm²

The lateral area is given by

... A = (1/2)C·s = (π/2)d·s

where C is the circumference of the base, d is the base diameter, and s is the slant height.

For a base diameter of 12 cm, this is

... A = (π/2)·(12 cm)·(18 cm) = 108π cm²

Then the total surface area of the cone is

... surface area = base area + lateral area

... surface area = (36π cm²) + (108π cm²)

... surface area = 144 cm²

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

goog may be able to you find that answer