Question #900020

# How to find the angles of triangle using its coordinates?

**
If the points A(7,9), B(3,-7), and C(-3,3) are the vertices of a triangle the find the measure of angle C?
(A) 60 degrees
(B) 45 degrees
(C) 90 degrees
(D) 30 degrees
**

TELL US , if you have any answer