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2003 AIME I Question 11

AIME · 2003 AIME I

Question 11

An angle $x$ is chosen at random from the interval $0^\circ \lt x \lt 90^\circ.$ Let $p$ be the probability that the numbers $\sin^2 x,$ $\cos^2 x,$ and $\sin x \cos x$ are *not* the lengths of the sides of a triangle. Given that $p = \frac{d}{n},$ where $d$ is the number of degrees in $\arctan m$ and $m$ and $n$ are positive integers with $m + n \lt 1000,$ find $m + n.$