Answer:
30
Step-by-step explanation:
Exterior angle equals sum of opposite interior angles
3x = 2x + 30
3x - 2x = 30
x = 30
Check the picture below
get the volume of each, sum them up, that's the volume of the figure

The volume of a cylinder can be represented by
, where
is the radius and
is the height.
In this case, we are told that
,
, and
.
Plug in the known values.

Find the power.

Multiply from left to right.


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