Question

A cubical box with the lid has a lenght of 30 . find the cost of painting the insidw and the outside of the box at 2 RS per m sq

Answer 1

wers



brunila 

Ace

Given,
     length of the cube = 30 cm=0.3 m
       total surface area of cube = 6l^2
                                             = 6 (0.3)^2
                                                 =0.54 m^2
          total cost for painting= (0.54)(2)
                                           =1.08 Rs
   therefore, the cost of total painting is 1.08 Rs

Answer 2

l= 30
lateral surface area of cube = 6l2
= 6× 30× 30
= 5400 m sq
1m = 2 rs
5400m = ?
= 10800
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