1972 AHSME Problems/Problem 30
Revision as of 19:50, 22 August 2017 by E power pi times i (talk | contribs) (Created page with "== Problem 30 == == Solution == Let the rectangle <math>ABCD</math> have crease <math>BE</math> with <math>E</math> on <math>CD</math>, and let <math>F</math> be on <math>A...")
Problem 30
Solution
Let the rectangle have crease with on , and let be on such that is a reflection of over . Notice that triangles and are similar, so by setting with , giving we have that . Noticing that gives . . Noticing that gives the answer to be which is not in the answer list?
If anyone could correct my solution, please help and thanks! P.S correct answer is .