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butalik [34]
3 years ago
14

Can someone help me please?

Mathematics
1 answer:
Olin [163]3 years ago
7 0

Answer:

336km^2

Step-by-step explanation:

There are 2 triangles and 3 squares in this 3D shape.

To find the surface area of this shape, you need to find the area add all the 5 shapes (height ✖️length) and add them.

area of the triangle: 8✖️9/2=36 +36<-- 2nd triangle=72km^2

area of a square: 11✖️8=88✖️3=264km^2

264+72=336km^2

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