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3 years ago

Please help me find the total surface area.

Mathematics

1 answer:

Brut [27]3 years ago

7 0

Answer:

261

Step-by-step explanation:

first find the area of the triangle

A=9x10/2

A=90/2

A=45

then add it 4 times

then find the area of the square

A=9x9

A=81

and add them all

45+45+45+45+81=261

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