Questions on shaded area

find shaded area

find the shaded area

As shown in the figure diameter of outer circle is 12cm. Ratio of shaded area shaded area of upper semi circle to that of the shaded area in the lower semicircle.

Determine the moment of inertia of the shaded area about y axis. The mass of the shaded area is M .

Ratio of total area of the rectangle to the total shaded area

The ratio to total are of the rectangle to the total shaded area

area of shaded region

Calcualte the shaded area.

Calculate the shaded area.