what is the total surface area of a cylander which has a 2 mm radius and a 5 mm heigth

SA of cylinder= 2 $${\mathtt{\pi}}$$ rh+2 $${\mathtt{\pi}}$$ r^2, r for radius and h for height.

20 $${\mathtt{\pi}}$$ +4 $${\mathtt{\pi}}$$ =24 $${\mathtt{\pi}}$$

Surface Area=24 $${\mathtt{\pi}}$$  mm^2.