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Ed Gomoliako · Answer 1 · 2019-12-16T06:06:44+0000

You obviously know how to do the cuboid shape.

6) Lateral area is (11 cm)*(8 cm +4 cm +8 cm) = 220 cm^2
.. Base area(s) = 2*(1/2)*(8 cm)*(3.9 cm) = 31.2 cm^2

Total area = Lateral area +Base area = (220 +31.2) cm^2 = 351.2 cm^2

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