5. Three cubes of edge 5 cm are put side by side
and fused together as shown. The block is to
be painted on all sides. Find the total surface
area of the block and the cost of painting at
25 per cm.
Answers
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Step-by-step explanation:
Edge =5cm
No. of cubes =3
Therefore edge of new cube =5*3=15cm
Total surface area =6 *edge^2
=6*225
=1350cm^2
Total Cost of painting =25*1350
=33750ruppees
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