The diagonal is drawn in the quadrilateral ABCD. It splits the quadrilateral into two triangles.
| June 16, 2021 | education
The diagonal is drawn in the quadrilateral ABCD. It splits the quadrilateral into two triangles. The sum of the angles of each of a triangle is 180 degrees. What is the sum of the angles of a quadrilateral?
If the sum of the angles of each triangle is 180 degrees, and there are two triangles, then the sum of the angles of the quadrilateral is 180 + 180 = 360 degrees. But regardless of the number of triangles and the sum of their angles, the sum of the angles of a quadrilateral is ALWAYS 360 degrees.
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