Question

a quadrilateral has three acute angle is measuring 80 degree then find the measure of fourth angle?​

Answer 1

Answer:

the sum of all angles =360 so fourt angel =360-80

Answer 2

Answer:

Fourth angle= 120 degree

Step-by-step explanation:

Assuming that x is the fourth angle.

Since all thre angles are 80 degree

80+80+80+x = 360 (Angle sum property)

240 +x=360

x =360-240

x=24 degree