Answer:
0.44444444 or 4/9
Step-by-step explanation:
Since we know the value of
, we can rewrite the equation replacing the variables.

Now solve. While solving, remember the order of operations.
or 
Using the formula given for area:
Area = 1/2 (7 +5)4 = 1/2(12)4 = 24 square cm.
Now to find the volume multiply the area by the depth:
24 x 6 = 144 cubic cm.
Answer:
a. add the areas of both bases to the rectangular area around the cylinder
Step-by-step explanation:
None of the other choices has anything to do with the surface area of a cylinder.
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Use your sense of what the question is asking about.