Line segment wx is the radius of circle x, and line segment zy is the radius of circle y. points w, x, c, y, and z are all on line segment wz.

what is the area of circle c, which passes though points w and z?

81
164
324
1296

Point D is the midpoint of the outer circle that we aim to find the area of

The circle has a diameter of WZ and radii of WC and CZ

We know that YZ=YD=10 cm

Let DC be  and CY be 

The radius of the outer circle can be written as  or  which we can equate to find the value of 






Therefore, the radius of the circle is 

And hence the area of the circle is =324