The surface area of a sphere is

where r is the radius;
The circumference is

so that

using this value we can evaluate the surface area of 1 ball as:

For 100 ball you get:
Volume of a cone = (1/3) x Area of the base (B) x height(h)
V = (1/3)·420·180
= 25200 mm³
Answer: 1.5 or 1 1/2
Step-by-step explanation:
Answer:
Cube C
Step-by-step explanation:

Answer:
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