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What is the exact surface area of the following square pyramid?

What is the exact surface area of the following square pyramid?
asked 214k views
3 votes
What is the exact surface area of the following square pyramid?

What is the exact surface area of the following square pyramid?-example-1
asked
User Chris Leyva
by
8.7k points

1 Answer

1 vote

Answer:


648√(2)unit^2

Explanation:


18^2+2\cdot 18\cdot \sqrt{(18^2)/(4)+9^2}\\=2\cdot \:18\sqrt{(18^2)/(4)+9^2}=324√(2)\\=18^2+324√(2)\\=324+324√(2)\\=648√(2)

answered
User Cameron E
by
7.8k points
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