Question

find the total surface area of a chalk box whose length, breath and height are 14 cm,8cm and 5cm respectively​

Answer 1

Total surface area = 2(LB + BH + HL)

Total surface area = 2(14×8 + 8×5 + 5×14) $cm^{2}$

Total surface area = 2(112 + 40 + 70) $cm^{2}$

Total surface area = 2(222) $cm^{2}$

Total surface area = 444 $cm^{2}$

Answer 2

Answer:

544 cm²

Step-by-step explanation:

Given: The dimensions of box 16cm, 8cm, and 6cm

To find:  The surface area of a chalk box.

Solution:

Now we have given:

                length = 16 cm

                breadth = 8 cm

                height = 6 cm

The total surface area of the box is:

                2(lb + bh + hl)

                2 ((16x8) + (8x6) + (16x6))

                2 (128 + 48 + 96)

                2 (272)

                544 cm²

∴ The Total Surface area is 544 cm²