alleryIn a right triangle, if hypotenuse = 13 and one leg = 5, sin θ for angle θ opposite to that leg:
A5/12
B12/13
C13/5
D5/13
Answer & Solution
Correct answer: D. 5/13
sin θ = opposite/hypotenuse = 5/13. (Other leg by Pythagoras: √(169-25) = 12. So cos θ = 12/13.)
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