Question

a cardboard box of length 80 CM breadth 70 cm and height 50 cm is to be made. it is to be open at the top. ignoring the thickness of the sheet calculate the following-1) area of the cardboard sheet required to make the box2) cost of the sheet at the rate of 2 paise per sq m.please answer fast it's urgent.I will mark brainliest.​

Answer 1

Answer:2800 at $ 56000

Explanation: multiplay the length breadth and height

Then multiplay with 2 that is the paise required to make a carboard

Answer 2

Thus area of the cardboard is 20600 cm^2

Explanation:

• Length of cardboard = 80 cm
• Breadth of cardboard = 70 cm
• Height of cardboard = 50 cm

Area of the cardboard = L.S.A of the box + Area of the box

Area of the cardboard =  2 h ( l + h ) + l x b

Area of the cardboard =  2 x 50 ( 80 + 70) + 80 x 70

Area of the cardboard =  100 x 150 + 5600

Area of the cardboard =  15000 + 5600

Area of the cardboard = 20600 cm^2

Thus area of the cardboard is 20600 cm^2