Posted by Jay on Sunday, February 3, 2013 at 1:31pm.
The measures of two consecutive angles of a parallelogram are in the ratio 5:4. What is the measure of an acute angle of the parallelogram?

Math  Steve, Sunday, February 3, 2013 at 1:38pm
since consecutive angles are supplementary,
5x+4x=180
x = 20
The angles are 80° and 100°