Ok well... The diagram shows 2 concentric circles. The large one has a radius of 5cm and the smaller one has a radius of 3cm. Find the ratio of the white to the shaded area..? Can anyone help? Pleasee...
Follow Math Help Forum on Facebook and Google+
Originally Posted by adeshSB Ok well... The diagram shows 2 concentric circles. The large one has a radius of 5cm and the smaller one has a radius of 3cm. Find the ratio of the white to the shaded area..? Can anyone help? Pleasee... Hi adeshSB, The area of the shaded area is using The area of the bigger circle is using the same reasoning. The difference between these areas is the area of the white part which would be The ratio of the white to the shaded area would then be:
View Tag Cloud