Question

Two blocks of cheese have approximately the same mass.one measures 7cm x 6cm x 12 and the other measures 8cm x 8cm x 8cm. Which block will need more shrink wrap? Explain.

Answer 1

Answer:

2nd vala

Step-by-step explanation:

tsa of first

2( 7*6+6*12+12*7)

2(42 + 72+84)=2(198)=396

tsa of second

2(8*8+8*8+8*8)= 2(64+64+64)= 2(192)=384

Answer 2

Answer:Solution:

First cheese block measurements => 7 cm x 6 cm x 12 cm

Second cheese block measurements => 8 cm x 8 cm x 8 cm

Cheese block is in a shape of cuboid.

Surface area of cuboid = 2(LW + LH + WH)

where,

L = Length

W = Width

H = Height

Surface area of first cheese block = 2(LW + LH + WH)

                                                      = 2(7*6 + 7*12 + 6*12)

                                                      = 2(42 + 84 + 72)

                                                      = 2 * 198

                                                      = 396 cm²

Surface area of second cheese block = 2(LW + LH + WH)

                                                      = 2(8*8 + 8*8 + 8*8)

                                                      = 2(64 + 64 + 64)

                                                      = 2 * 192

                                                      = 384 cm²

The first cheese block will require more shrink wrap as it is having more surface area so, required shrink wrap to cover will be more too.

Shrink wrap is that thing which is used to cover things and is made up of polymer plastic film.

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