Question

5. the three angles of a quadrilateral are equal. If the measure of the fourth angle is
120°, what is the measure of each of the equal angles ?​

Answer 1

Answer:

80°,80°,80°,120°

Step-by-step explanation:

Let the measure of one of the three equal angles is x

then x+x+x+120=360

3x=360-120

3x=240

x=240/3=80

Answer 2

Let the equal angles are a
a+a+a+120=360
a=80