3 years ago

I need the steps please.

Mathematics

2 answers:

user100 [1]3 years ago

7 0

Answer:A

Step-by-step explanation:

Length=L=15cm

Width=w=8cm

Height=h=2cm

Surface area=(2xwxL)+(2xLxh)+(2xhxw)

Surface area=(2x8x15)+(2x15x2)+(2x2x8)

Surface area=240+60+32

Surface area=332 cm^2

otez555 [7]3 years ago

5 0

Answer:

a. 332 cm²

Step-by-step explanation:

Surface area is the sum of areas of 6 rectangular faces of the box

Opposite faces have equal areas

SA = 2[(15×8) + (15×2) + (8×2)]

= 2[120 + 30+ 16]

= 2(166)

= 332 cm²

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