A reader caught an error on the Angle Detective Geometry page under the Angle Detective’s Theory section. The ‘F’ rectangle was showing 5/8 rather than what it now has been corrected to show, which is 6/8 or 3/4. I hope that didn’t cause too much confusion for those who had already gotten there before the correction. Sorry about that.

Please contact me if you find any other errors. Thanks, everyone!