Answer to Question #297947 in Trigonometry for Phia

Question #297947

Given that the cosine of an angle is cos (∅) = 1/2°, what height of the triangle formed by this? ( The terminal point for this angle is (1,y) solve for y ).

Expert's answer

"y=\\sin (\\theta)=\\sqrt{1-\\cos^2(\\theta)}=\\sqrt{1-\\frac{1}{4}}=\\frac{\\sqrt{3}}{2}."

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