Dome, Ball, Plate
A small green circle is inscribed within the section of a bigger blue circle, touching the mid-chord, as shown above left. Then the graphs are revolved around the -axis to generate three figures: a blue cover dome, a green spherical melon, and a red serving plate.
Which of the following options will have more surface area?
I. The blue dome
II. The melon plus the plate
by
Worranat Pakornrat