Question

If mA = (25x + 1)°, mZC = (25x - 2)°, and mZD= (20x-1)º, find m/D.A. 40°B. 79°C. 98°D. 101°

Answer 1

The given shape is a quadrilateral, hence, the sum of the angles must be 360.

This means that;

The given angles are;