Question

An open cube of 20cm length is made from metal sheet. How much sheet metal will be

required to make this? The outside surface of the cube is to be painted at a rate of 10 rupees per

square cm. How much will it cost to paint the cube?​
those who will give ans frist i will mark him or her as brain list but with questions give all the explanation step by step

Answer 1

Answer:

metal Required =1600cm²

cost=Rs16000

Step-by-step explanation:

open cube has 4 squares in it,

given,

length =20cm,

area of square=side²

area of each square=20*20cm²

there are 4 square so total area will be=4*20*20cm²

=1600cm²

given,

cost=rs10/cm²

total cost=1600*10

=Rs.16000