Question

(h) A cardboard box of length 80 cm, breadth 70 cm and height 50 cm is to be
the following:
i. Area of the cardboard sheet required to make the box
il. Cost of the sheet at the rate of 2 paise per sq. cm
made. It is to be open at the top. Ignoring the thickness of the sheet, calculate​

Answer 1

Answer:

(I) area of cardboard = curved surface area

=2(l+b)h+lb

=2(80+70)50+80*70

=2(150)50+5600

=100*150+5600

=15000+5600

=20600

Mark as brainlist