SOLUTION: Two adjacent of a parallelogram are equal. What is the measure of each these angles? How can we solve a problem like this when there's no number?

Algebra ->  Parallelograms -> SOLUTION: Two adjacent of a parallelogram are equal. What is the measure of each these angles? How can we solve a problem like this when there's no number?      Log On


   



Question 946932: Two adjacent of a parallelogram are equal. What is the measure of each these angles?
How can we solve a problem like this when there's no number?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Because in a parallelogram, opposite angles are equal and you know the sum of all of the angles is equal to 360.
X%2BY%2BX%2BY=360
X%2BY=180
Now if X=Y then,
X%2BX=180
2X=180
X=90
So then,
Y=90