Question

Find the measure of the fourth angle of a quadrilateral if the measure of three angles of the quadrilateral are
55,110 and 72 °​

Answer 1

Step-by-step explanation:

sum of all angles of a quadrilateral= 360

=55+110+72= forth angle

forth angle let x

360=55+110+72+x

360=55+110+72+x

360=55+182+x

360=237+x

360-237=x

127=x

x=127

forth angle=127. ans