Answer:
31.41
Step-by-step explanation:
Substitute
First list all the factors of 12;
1, 2, 3, 4, 6, 12
now let's see which ones are multiples of 3;
3, 6, 12
so all we have left are numbers 1, 2 and 4.
hope that helps, God bless!
Answer:
7
Step-by-step explanation:
You can divide both 14 and 21 by seven and get a whole number.
V = π r² h
V = π (4)² 8
V = 402.12
Hope this helps :)