Answer:
Step-by-step explanation:
This rotation would create a sphere.
Answer:
The width will be 
Step-by-step explanation:
Thinking process:
Let the model be:

factoring out 4 gives:

Factorizing the expression in the parentheses gives:

Therefore, since the expression in the parentheses cannot be factorized further, the expression is:

62.82 cm
Step-by-step explanation:
the formula of circumference of circle is 2 Pi R
so, 2 * 22/7 * 10 cm = 62.82 cm
Answer:
c
Step-by-step explanation:
f