Khan/khan-exercises — pull request #11597 by jklange (2012-01-19 14:26:13+00:00)
Title: Fix for issue #9732; made it so system cannot randomize solution value less than 20

Fix for issue #9732; made it so system cannot randomize solution value less than 20. Also made the upper limit on the range of possible values smaller for angle a (from 150 to 120).