2 years ago

Find the surface area of the prism. 5 cm 3 cm 7 cm

Mathematics

2 answers:

Nookie1986 [14]2 years ago

6 0

A prism has 6 sides.

2 sides are 7 x 5

2 are 3 x 5

2 are 3 x7

Surface area = 2(7x5) + 2(3x5) + 2(3x7)

Surface area = 70 + 30 +42

Surface area = 142 square cm

leva [86]2 years ago

3 0

Answer:

A=2(wl+hl+hw)

A= 2 (3×7+7×5+5×3)

A=2×71

A=142

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