Harley1980 wrote:
Vertices A and B of triangle ABC lie on circle with area 25pi. Does vertice C of triangle ABC lie on the circle?
1) Angle ACB = 90 degrees
2) Length of AB = 5 cm
Should it not be D?
A and B are on a circle and a third point conjoining the two gives and angle 90, by definition has to be a right angle triangle with C on the circle.
Also, I am confused. Even if you look at statement 2, length of AB is the radius and not the diameter (area of circle is 25pi- 5^2pi). In this event, answer would be A.
Please clarify.