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PSAT/NMSQT
PSAT Math Test - Calculator Section

Opposite Side of a 30 Degree Angle in a Right Triangle

Very Easy Additional Topics In Math Trigonometry

Consider a right triangle where one of the angles is $30^{ ext{o}}$ and the hypotenuse is 10 units long. In this triangle, what is the length of the side opposite the $30^{ ext{o}}$ angle?

Use the sine function for your calculations, remembering that for any angle $ heta$ in a right triangle, the sine function is defined as:

sin(θ) = opposite/hypotenuse

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