Question

maths quedtion to solve please help me ​

Answer 1

Answer:volume is=2700m^3

surface area =89400

Step-by-step explanation:

Answer 2

• Volume of a cuboid = $\sf {2700m}^{3}$
• Surface area of a cuboid = 1200m².

Given :–

• Length of a cuboid = 10m.
• Breadth of a cuboid = 18m.
• Height of a cuboid = 15m.

To Find :–

• Volume of a cuboid.
• Surface area of a cuboid.

Solution :–

1. Volume of a cuboid.

Volume = length × breadth × height

OR,

• $\tt l \times b \times h$

We have,

• length = l = 10m.
• breadth = b = 18m.
• height = h = 15m.

So,

$\mapsto 10m \times 18m \times 15m$

$\mapsto 180 {m}^{2} \times 15m$

$\mapsto 2700 {m}^{3}$

Hence,

The volume of a cuboid is $\sf {2700m}^{3}$

_______________________________

2. Surface area of a cuboid.

Surface area = 2lb + 2bh + 2hl

OR,

• $\tt 2(lb + bh + hl)$

We have,

• l = 10m.
• b = 18m.
• h = 15m.

So,

$\mapsto 2(10 \times 18 ){m}^{2} + 2(18 \times 15) {m}^{2} + 2(15 \times 10) {m}^{2}$

$\mapsto 2(180) {m}^{2} + 2(270) {m}^{2} + 2(150) {m}^{2}$

$\mapsto 360 {m}^{2} + 540{m}^{2} + 300 {m}^{2}$

$\mapsto 660 {m}^{2} + 540 {m}^{2}$

$\mapsto 1200 {m}^{2}$

Hence,

The surface area of a cuboid is 1200m².