Question

three angles of a quadrilateral are equal . the fourth triangle is 120 degree . find the measure of equal angle

Answer 1

Answer:

Your answer is 80 degrees

Step-by-step explanation:

Let three equal angles of quadrilateral bex.

Then,

X + x + x + 120 degree = 360 degree

➡️ Sum if all angles of quad = 360°

3x + 120 = 360

3x = 240

x = 80 degrees

➡️ Measure of each equal angle is 80°

Answer 2

Answer:

Step-by-step explanation:

As we know that sum of all angles of a quadrilateral is 360 degree.

So

Acc. To question

3 angles are same so let them be 3X

Now

3X+120=360

3X=240

And

X=240/3

X=80 degree

So

angles of quad. Are 80,80,80,120