Question

A toy box has length 15 cm and width 10 cm. If the lateral surface area of the box is 400 sq. cm, find the total surface area of the toy box,
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Answer 1

Answer:

425 CM is the total answer

Answer 2

Answer:

700cm² or 7m²

Step-by-step explanation:

For this question you will first have to find height of the box

Lateral surface area of a box which is a cupid=2(lh+bh)

400=2(15×h+10×h)

400=2(15h+10h)

400÷2=25h

200=25h

h=200/25

=8

Now we got the height so you can find the total area

Total surface area of a cuboidal toy box

=2(lb+bh+hl)

=2(15×10+10×8+8×15)

=2(150+80+120)

=2×350

=700

Thus the total surface area of the toy box is 700cm² or 7m²