Question

A quadrilateral has angles that measure 68º. 81°, and 90°
What is the measure of the fourth angle?​

Answer 1

the angle would be 121 degrees

Answer 2

Answer:

Quadrilateral

Step-by-step explanation:

The sum of the interior angles of a quadrilateral are equal to 360`. To find the fourth angle of a quadrilateral when the other three angles are known, subtract the number of degrees and the other three angles from 360` (I can't put the circle on a Samsung computer ;^;)