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What is the surface area of the cylinder? Express the answer in terms of pi.
2 answers:
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➷ The formula for surface area of a cylinder is:

The radius is half the diameter
radius = 8/2 = 4
Substitute the values in:

Solve it:
surface area = 
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Answer:
525.64 
Step-by-step explanation:
The formula is <em>S.A. =2
</em>
write the equation out. *raduis is half of diameter, d=8. r=4)
2 x 3.14 x
+ 2 x 3.14 x 4 x 18 = <em>S.A. </em>
Solve
2 x 3.14 x 4^2 = 100.48
Rewrite
100.48 + 2 x 3.14 x 4 x 18 = <em>S.A.</em>
solve second halve
2 x 3.14 x 4 x 18 = 452.16
rewrite
100.48 + 425.16 = 525.64
525.64 
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