If i'm mistaken; he needs to buy 3 sheets?
Answer:
39 pi cubic inches
Step-by-step explanation:
The volume of a cone is (1/3)(area of the base)(height).

Find the area of the circular base. The circumference of a circle is
, so

Now that you know the radius of the circular base, you can find its area:

The height of the cone is 13. Time to use the volume formula.

Answer:
408cm2
Step-by-step explanation:
30x7 + 18x10 is the answer if you segment the figure into two rectangles, and that gives rou 408cm2
plz brainliest;)