Answer:
Make two piece of this figure
Step-by-step explanation:
then use formula of v = l × b × h
There are three 'x's on the 3/4 spot, so you know that there are three 3/4 inch buttons.
To find how long they are lined up, you add them.
3/4 + 3/4 + 3/4 = 9/4
9/4 as a mixed number is 2 1/4.
Good luck!
I believe these might answer your question
6/10
9/15
12/20
Formula for the surface area of a cylinder: 2 x pi x r^2 + 2 x pi x r x h
Radius (r) = 3
Height (h) = 3
2 x pi x 3^2 + 2 x pi x 3 x 3
2 x pi x 9 + 2 x pi x 9
18pi + 18pi
36pi = 113.1 cm^2
Hope this helps!