Find the surface area of the cylinder with a diameter of 20 cm and height of 11 cm, as shown on the diagram below.
x
y
a2
ab
7
8
9
÷
(
)
<
>
4
5
6
×
|a|
,
≤
≥
1
2
3
−
π
0
.
=
+
Give your answer correct to 1 decimal place.
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