Question

three angles of a quadrilateral are equal and The Fourth angle measures 120 degree what is the measure of each of the equal angles ​

Answer 1

Let the equal angles be x.

Using Angle Sum Property,

x+x+x+120 =360

3x=360-120

3x =240

x=240÷3

x=80

Hence, the other 3 angles are 80° each.

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Answer 2

Step-by-step explanation:

The three angle will be.... 80°

Here... Look towards the attachments...