Question

Find the area of the cuboidical box of dimension 15cmX5cmX20cm

Answer 1

Answer:

1650 cm^2

Step-by-step explanation:

total surface area of cuboid =2×(lb +bh+ lh)

Answer 2

Answer:

surface area of cuboid,

$2(lb + lh + bh)$

Step-by-step explanation:

$l = 20cm \\ b = 15cm \\ h = 5cm \\ = > 2(20 \times 15 + 15 \times 5 + 20 \times 5) {cm}^{2} \\ = > 2(300 + 75 + 100) {cm}^{2} \\ = > (2 \times 475) {cm}^{2} \\ = > 950 {cm}^{2}$