Question

Breadth 10cm height 2cm occupies space 150cm square find length and T.S.A of box

Answer 1

Answer:

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Answer 2

Answer:

Given,

Breadth, b = 10cm

Height, h = 2cm

Space occupied, volume = 150cm³

Let length be 'l'

Volume of cuboid = l × b × h

150 = l × 10 × 2

150 = l × 20

l = $\frac{150}{20}$

l = 7.5cm

∴ The length of the box = 7.5cm

TSA of cuboidal box  = 2 (lb + bh + lh)

                                   = 2 [(7.5×10) + (10×2) + (7.5×2)]

                                   = 2 (75 + 20 +15)

                                   = 2 ( 110 )

                                   = 220 cm²

∴ The TSA of the box = 220 cm²