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What is the total surface area?

What is the total surface area?-example-1
User Twocold
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1 Answer

2 votes
1/2 x base x height
= 1/2 x 9 x 4 = 18
18 x 4 = 72
72 + 9 x 9 = 153m^2
User Tobia Zambon
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