In the figure, two circles cut at A and B. P and Q are the centres of the circles. If <APB=90 and <AQB=60 then find the area of the shaded portion if AP=4cm.

Printable View

- Feb 1st 2010, 09:14 AMsnigdhaCircles
In the figure, two circles cut at A and B. P and Q are the centres of the circles. If <APB=90 and <AQB=60 then find the area of the shaded portion if AP=4cm.

- Feb 1st 2010, 12:33 PMbjhoppercircles
posted by snigdha

AP=4 given

AB=4times radical 2 property of 90 deg triangle with equal legs

AQ= AB property of equilateral triangle

Calculate the area of the two defined triangles.

Calculate the two sector areas.

Calculate the two segment areas.

It is downhill from there on.

bjh