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User Ceezy
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Answer: The cone is 138.16

User AntBrown
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Answer:

Cone- 138.16

Square pyramid- 352

Explanation:

the formula for surface area of cone is piR^2 + piRL

(R is radius and L is the length down the side of the cone)

the formal for lateral area of square pyramid is (1/2) L times P

(L is length down side and p is perimeter of base)

User Iwan Aucamp
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