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alina1380 [7]
3 years ago
6

PLEASE HELP!!!! ASAPP!!!! I will name Brainliest.

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
5 0

Answer:

\boxed{\sf 200 \ feet^2}

Step-by-step explanation:

The 3D shape is a square-based pyramid.

The surface area of a square-based pyramid is given as:

\sf SA=2 \times (base \ length) \times (slant \ height) + (base \ length)^2

Plug in the values.

\sf SA=2 \times 10 \times 5 + 10^2

\sf SA=100 + 100

\sf SA=200

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