Question

HELP....PLEASE,USE GEOMETRY!

Answer 1

Answer:

18$\pi$

Step-by-step explanation:

area of the "left most" side disk would be $\pi r^{2}$ = 9$\pi$

the height of the disk is = 2

thus the area would be 18$\pi$ units cubed

Answer 2

Answer:

56.55 units

Step-by-step explanation:

If we rotates this rectangle we will get a cylinder.

The base of this cylinder is a circle with a radius of 3 units (the high of the rectangle).

And the high of this cylinder is 2 units.

Volume of cylinder is given by the formula :

V= h.pi.r²

so V= 2×3.14×9

= 56.55 units