What is the figure's surface area? (Use 3.14 for π .)
301.44 cm^2
320.28 cm^2
395.64 cm^2
452.12 cm^2
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ANSWER
[tex]320.28 {cm}^{2} [/tex]
EXPLANATION
The surface area of a cylinder is given by
[tex]SA = 2\pi \: r(r + h)[/tex]
From the diagram, r=3cm and h =14cm.
We substitute the known values into the formula to get:
[tex]SA = 2\pi \: 3(3+ 14)[/tex]
[tex]SA = 2(3.14)\: 3(3+ 14) [/tex]
[tex]SA =320.28 {cm}^{2} [/tex]
The second choice is correct.