Question

ASAP LAST DAY TO TURN IN*

Determine the surface area of the three-dimensional composite figure after rotation about the x-axis. Show all work to receive credit. Bubble answer on griddable. Round to the nearest hundredth if necessary.
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Answer 1

72.85 sq units

Explanation:

SA = (½×4×3.14×2²)+(2×3.14×2×2) +(3.14×2×3.6)

= 25.12+25.12+22.61

= 72.85 sq units