Question

Three cubes each of sides 5cm are joined end to end .Find the surface area of the resulting cuboid.

Answer 1

Solution:-

Length of each side of cube = 5 cm
Now, 3 cubes are joined end to end.
So, the length of the resulting cuboid will be = 5+5+5 = 15 cm
But, the breadth and height will remain the same.
So, Breadth = 5 cm and Height = 5 cm
Surface area of the cuboid = 2(LB + BH +HL)
= 2(15*5 + 5*5 + 5*15)
= 2(75 + 25 + 75)
= 2*175
Surface area of the cuboid = 350 sq cm
Answer.

Answer 2

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