The 4th angle is: 360-90-145-78 = 47 degrees
The four angles of a quadrilateral add up to 360 degrees.
360 degrees
The 4 interior angles of a quadrilateral add up to 360 degrees
50 degrees (360 degrees in a quadrilateral)
4
It is: 47 degrees
A vertex of a quadrilateral can have any measure between (but excluding) 0 degrees and 360 degrees. The only requirement is that the four angles add to 360 degrees. So a quadrilateral can have angles of 0.1, 0.1, 0.1 and 359.7 degrees.
The sum is two straight angles or 360 degrees.
A quadrilateral has 4 sides and its 4 interior angles add up to 360 degrees
80 degree
The 4 interior angles of any 4 sided quadrilateral add up to 360 degrees
The 4 interior angles add up to 360 degrees