Answer:
Assuming there's not a larger number the question is asking for, he would have 1 plain donut out of the 4.
Volume of a sphere is given by the formula:

If we pull the 4 out front we have,

.
Volume of a cone is given by the formula:

Notice that if the height of the cone is equal to the radius,

then it's exactly what we see in our volume formula without the 4!
Step-by-step explanation:
stay safe healthy and happy.
Answer:
0.495
Step-by-step explanation:
Each trianglar side has an area: (1/2)*8*9=36
the base is a square with an area of 8*8=64
so the total surface area is 36+36+36+36+64=208