Question

A quadrilateral has angles that measure 44°, 89°, and 127°.  What is the measure of the fourth angle?

Answer 1

The forth angle measures 100 degrees

Answer 2

Every quadrilateral has to equal 360. so to find the fourth angle you would add the others.
44 + 89 + 127 + ? = 360
add them together
260 + ? = 360
now subtract 360 by 260
? = 100

you can check it too
44 + 89 + 127 + 100 = 360
so obviously the fourth angle is 100 degrees hope it helped :)