Grade 10 · Math
Use a right-triangle sine ratio practice
Find an exact sine ratio from labeled right-triangle side lengths.
Opening your practice adventure…
Try a sample
In a right triangle, the side opposite θ is 11, the adjacent side is 60, and the hypotenuse is 61. What is sin(θ)? Give an exact fraction.
See the answer & why
sin(θ) = opposite/hypotenuse = 11/61.
A little hint: Sine uses the opposite side over the hypotenuse.
A teaching tip
Identify opposite and hypotenuse relative to the chosen angle before making the ratio.