Help with a Math Question

Test Preparation SAT Preparation
1

<p>First of all this is a practice question question from a prep book.I got a bit confused by the whole wording of the question.
The opposite sides of quadrilateral Q are parallel and one of the four angles of Q is 90 degrees.If x is an angle of quadrilateral Q,which one of the following must be true?
1)x=80
2)x=88
3)x=90
4)x=91
5)It cannot be determined from the information given</p>

2

<p>x=90</p>

<p>definition of a rectangle: parallelogram with one 90 degree angle</p>

3

<p>^got it…my mistake thnks choklitrain</p>