1979 AHSME Problems/Problem 3
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Problem 3
In the adjoining figure, is a square,
is an equilateral triangle and point
is outside square
.
What is the measure of
in degrees?
Solution
Solution by e_power_pi_times_i
Notice that and that
. Then triangle
is isosceles, so
.
Solution 2 (Obnoxiously tedious)
WLOG, let the side length of the square and the equilateral triangle be .
\angle{AED}=15^\circ
\boxed{C}$.
~hastapasta
Video Solution
https://youtu.be/FDgcLW4frg8?t=1341
~ pi_is_3.14
See also
1979 AHSME (Problems • Answer Key • Resources) | ||
Preceded by Problem 2 |
Followed by Problem 4 | |
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