Question 124
Work out the surface area of the following shape.
In the given figure, there is a cube of side 5 cm and a cylinder of height 20 cm and radius is 2 cm
So, total surface area = Surface area of the cube + Curved surface area of cylinder
=6(5)2+2π(2)×20
=150+80π [∵surface area of cube=6a2∴surface area of cylinder=2πrh]
=150+80π
Total surface area =150+251.2=401.2 cm2