Difference between revisions of "1991 AHSME Problems/Problem 29"
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(A) <math>\frac{8}{5}</math> (B) <math>\frac{7}{20}\sqrt{21}</math> (C) <math>\frac{1+\sqrt{5}}{2}</math> (D) <math>\frac{13}{8}</math> (E) <math>\sqrt{3}</math> | (A) <math>\frac{8}{5}</math> (B) <math>\frac{7}{20}\sqrt{21}</math> (C) <math>\frac{1+\sqrt{5}}{2}</math> (D) <math>\frac{13}{8}</math> (E) <math>\sqrt{3}</math> | ||
| + | {{MAA Notice}} | ||
Revision as of 12:54, 5 July 2013
Equilateral triangle 
has 
on 
and 
on 
. The triangle is folded along 
so that vertex 
now rests at 
on side 
. If 
and 
then the length of the crease is
(A) 
(B) 
(C) 
(D) 
(E) 
The problems on this page are copyrighted by the Mathematical Association of America's American Mathematics Competitions. 
