Question

CAN ANYONE HELP NE WITH THIS ONE TOO??

Answer 1

I think u have to multiply all the numbers together

Answer 2

Answer:

326.56 in².

Step-by-step explanation:

Mathematics: Define/explain.

SURFACE AREA: The measure of the total area that an object occupies.

The formula for finding the surface area for a cylinder is:

$SA=2\pi r^2+2\pi rh$

$r-radius$

$h-height$

Mathematics: Solve.

According to the image, the cylinder has a height of 9 inches and a base radius of 4 inches.

Now, we can plug the numbers into the formula.

$SA=2\pi 4^2+2\pi4*9- (2*3.14*4*4)+(2*3.14*4*9)=326.56.$

Mathematics: Conclude.

Therefore, the surface area of this cylinder is 356.56 in².