a closed box is made of wood 1cm thick.it is 30cm long,20cm wide and 12cm high.find the volume of the wood.
Answers
Answer:
5040 cm³
Step-by-step explanation:
STEP 1: Find the internal length
Length of the box = 30 cm
Total thickness of the wood on both sides = 1 x 2 = 2 cm
Internal Length = 30 - 2 = 28 cm
STEP 2: Find the internal breadth
Breadth of the box = 20 cm
Total thickness of the wood on both sides = 1 x 2 = 2 cm
Internal Breadth = 20 - 2 = 18 cm
STEP 3: Find the internal height
Height of the box = 12 cm
Total thickness of the wood on both sides = 1 x 2 = 2 cm
Internal Length = 12 - 2 = 10 cm
STEP 4: Find the volume of the wood
Volume = Length x Breadth x Height
Volume = 28 x 18 x 10 = 5040 cm³
Answer: 5040 cm³
The length (L) of the box is given as=30 cm
The total thickness of the wood on both sides=(1x2)=2 cm
So, the Internal length =(30-2)=28 cm
The Breadth (B) of the box is given as=20 cm
The total thickness of the wood on both sides=2 cm
Internal Breadth =(20-2)= 8 cm
The length (L) of the box is given as=30 cm
The total thickness of the wood on both sides=(1x2)=2 cm
So, the Internal length =(30-2)=28 cm
The height (H) of the box is given as=12 cm
The total thickness of the wood on both sides=2 cm
Internal Length=(12 - 2)=10 cm
Now, the volume:-
Volume=L×B×H
Volume=28x18x10
=5040 cm³
So, the new volume=5040 cm³