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a cuboid of unit length, unit breadth and of height 10 units is cut into 10 cubical pieces by nine equal cuts across its height. the total surface area of these ten cubes will be (a) 20 unit square (b) 40unit square © 42 unit square (d) 60 unit square

a cuboid of unit length, unit breadth and of height 10 units is cut into 10 cubical pieces by nine equal cuts across its height. the total surface area of these ten cubes will be
(a) 20 unit square 
(b) 40unit square
© 42 unit square 
(d) 60 unit square

Grade:8

1 Answers

g v subba reddy
56 Points
7 years ago
after cutting in to 10 equal pieces the cuboid has became a 10 equal cubes
the dimensions of this cubes are 1,1,1
therefore the TSA of cube=6a2=6
therefore the TSA Of 10 cubes=6*10=60

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