The diagram shows a rectangle abcd inscribed in a circle. Given cm and cm, show that the area, of the shaded region is given by
[quote=Punch;527303]The diagram shows a rectangle abcd inscribed in a circle. Given cm and cm, show that the area, of the shaded region is given by
You can work out the diameter using the Pythagorean Theorem.
.
Therefore the radius .
So the area of the circle is
.
Now if we work out the area of the rectangle,
.
So the area of the shaded region is
.