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den301095 [7]
3 years ago
8

Help please..............

Mathematics
1 answer:
arsen [322]3 years ago
7 0
Looks good to me. Calculation is correct.  Although you might want to add to #1 your description; that the width of the rectangle is the circumference of the circle (w = 2πr) and that you add the surfaces together to get the total surface area.
total surface area = area of rectangular part + area of circular parts
SA = 2πrL + 2πr²

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