Three angles of a quadrilateral are 105°, 75°, and 98°. What is the fourth angle?
Note
A quadrilateral has a total angle sum of 360°. Add the given angles to get 278°, then subtract from 360°: the fourth angle is 82°.
Three angles of a quadrilateral are 105°, 75°, and 98°. What is the fourth angle?
A quadrilateral has a total angle sum of 360°. Add the given angles to get 278°, then subtract from 360°: the fourth angle is 82°.