If we drew a line connecting the two vertices that are furthest from each other, we would create two triangles, and by SSS, these triangles would be congruent.
And n° would be the same as the measure of its corresponding angle, which is 142° . So...
n = 142
In every quadrilateral, the sum of the interior angles = 360° , so....
m = 360 - n - 142 - 20 = 360 - 142 - 142 - 20 = 56
m = 56
If we drew a line connecting the two vertices that are furthest from each other, we would create two triangles, and by SSS, these triangles would be congruent.
And n° would be the same as the measure of its corresponding angle, which is 142° . So...
n = 142
In every quadrilateral, the sum of the interior angles = 360° , so....
m = 360 - n - 142 - 20 = 360 - 142 - 142 - 20 = 56
m = 56