Question

Two cubes each of volume 125cm3 are joined and to end together. find the surface area of resulting solid.

Answer 1

side length of the cube = cube root of 125= 5cm

RESULTING SOLID IS A CUBOID

length = 10cm

breadth= 5cm

height= 5cm

surface area of cuboid = 2(lb+bh+hl)

=2×(10×5+5×5+5×10)

=2×(50+25+50)

=2×(125)

=250cm²

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