Question

A and B are two boxes whose dimensions are 21 cm *21cm*21cm and 32cm*16cm*8cm respectively which box requires the lesser amont of material to make and how much​

Answer 1

Answer:

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Step-by-step explanation:

For A:-

edge = 21 cm

TSA of cube = 6l²

= 6×(21)²

= 6×441

= 2646 cm² amount of material is required to make box A.

For B:-

length = 32 cm

breadth = 16 cm

height = 8 cm

TSA of cuboid = 2(lb+bh+hl)

= 2(32×16+16×8+8×32)

= 2(512+128+256)

= 2×896

= 1792 cm² amount of material is required to make box B.

box B requires lesser amount of material by:-

2646 cm²

-1792 cm²

854 cm² much.