Question

Length,breadth and height of a cuboid are 5 cm 3cm and 2 respectively Calculate the density of the cuboid if its mass is 90 gm

Plz ans fast​

Answer 1

Answer:

3gm/cm³

Explanation:

Dimensions of the cuboid :

• 5cm, 3cm, and 2cm.

∴ Volume of the cuboid :

• (5 × 3 × 2)cm³
• 30cm³

Density of the cuboid is given by :

★ p = m/v

Where,

• m(mass) = 90gm
• v(volume) = 30cm³
• 'p' denotes the density.

On substituting the values :

→ 90/30

→ 3gm/cm³

Required answer : 3gm/cm³

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Formula used :

★ Density -

• p = m/v

★ Volume of a cuboid -

• length × breadth × height.

Answer 2

Answer:-

First find volume of the cuboid

• l=5cm
• b=3cm
• h=2cm

$\\ \sf\longmapsto Volume=lbh$

$\\ \sf\longmapsto Volume=5\times 3\times 2$

$\\ \sf\longmapsto Volume=30cm^3$

• Mass=90g

We know that

$\boxed{\sf Density=\dfrac{Mass}{Volume}}$

$\\ \sf\longmapsto Density=\dfrac{90}{30}$

$\\ \sf\longmapsto Density=3g/cm^3$

$\\ \sf\longmapsto Density=0.3kg/m^3$

Note:-

• SI unit of density is kg/m^3
• CGS unit of density is g/cm^3