2 years ago

What is the surface area?

Mathematics

2 answers:

zubka84 [21]2 years ago

6 0

Answer:

402cm

Step-by-step explanation:

middle rectangle: 10 * 12 = 120cm

top and bottom rectangles: the sides will be connected to the 8cm triangle, making their heights 8cm. 8 * 12 = 96cm

side triangles: (10 * 9) / 2= 45cm

120 + (2 * 45) + (96 * 2) = 402cm

rewona [7]2 years ago

5 0

It is length X w X height

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