Question

Find the volume in cu dm of each of the cubes whose side is:-

1) 1.2m

2) 25m


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Answer 1

Answer:

Let one edge of a cube= a. Volume ... a room 25 m by 9.6 m. If each person's requires 16 m3 of air; find the height

Step-by-step explanation:

2) 25m

Answer 2

Answer:

$\huge\sf\fbox\pink{1) 1.2m}$

Solution:⤵

We have,

⚜ Length of the side of the cube = 1.2 m

= ( 1.2 × 10 ) dm = 12 dm

∴ Volume of the cube ⤵

$= ( side )^{2} = (12)^{2} {dm}^{2} = 1728 \: {dm}^{2}$

$\huge\sf\fbox\pink{2) 25cm}$

Solution ⤵

We have,

⚜ Length of the side of the cube = 25cm

$= \frac{25}{10} \: dm \: = 2.5 \: dm$

∴ Volume of the cube ⤵

$= (2. {5})^{3} \: {dm}^{3} = 15.625 \: {dm}^{3}$