Question

The perimeter of one face of a wooden cube is 40 cm. Find its weight if 2 cm³ of wood weighs 8.20 g.​

Answer 1

Answer:

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Answer 2

Answer:

• Its weight is 8.2 kg

Step-by-step explanation:

According to the Question

It is given that,

• Perimeter of one face of wooden cube 40 cm
• Volume 2 cm³
• Density 8.20g

we have to calculate the weight of cube

Firstly we calculate the side of cube.

Let the side be s

Perimeter of one face of wooden cube = Perimeter of Square = 4 × side

On substituting the value we get

→ 4 × side = 40

→ side = 40/4

→ side = 10 cm

Now, calculating the volume of cube .

• Volume of cube = side³

On substituting the value we get

→ Volume of Cube = 10 × 10 × 10

→ Volume of Cube = 1000 cm³

Now, calculating the weight (mass) of cube .

• Weight = Density × Volume

On substituting the value we get

→ Weight = 8.20 × 1000

→ Weight = 8200

→ Weight = 8200/1000

→ Weight = 8.2Kg

• Hence, its weight is 8.2 Kg