a box is in the form of cuboid of dimensions (80*30*40) cm. the base the side faces and back faces are to be covered with a coloured paper. find the area of paper needed.
Answers
Answer:8000
Step-by-step explanation:
first area of the box = 2(80 * 30 + 30 * 40 + 80 * 40)
=2( 2400 + 1200 + 3200)
= 13600
therefore area of paper needed = 13600 - (area of front face + area of the top)
= 13600 - ( 80 * 40 + 80 * 30 )
= 13600 - 5600
= 8000
therefore answer is 8000
Given:
Dimensions of the box = 80×30×40
To Find:
The area of paper needed.
Explanation:
first area of the box = 2((80 ×30) + (30 × 40) + (80 × 40))
A=2( 2400 + 1200 + 3200)
A= 13600
= 13600 - ( area of the top + area of front face)
= 13600 - (( 80 ×40) + (80 × 30) )
= 13600 - 5600
= 8000
The area of paper needed is 8000.