CBSE 10th Class Mathematics
Past year question paper
Year 2020
SET 1, Code Number – 30/5/1
Question Number – 26
volume area problem
volume problem with that surface area
Deepak BoraNewbie
2 cubes, each of volume 125 cm³ , are joined end to end. Find the surface area of the resulting cuboid.
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Volume of cube = 125 cm³
Let ‘a’ be edge of cube
So a³ = 125
a = 5
Cuboid : Length,
l =10cm
b = 5 cm
h = 5 cm
surface area = 2( lb + bh +hl )
= 2 (50 + 25 + 50)
surface area = 250 cm²