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.)
Keep practising Quadratic Equations
Browse all Quadratic Equations questions for GRE, or explore more Mathematics topics.
Related questions
Solve x² − 2x − 4 = 0.For what value of k does x² + kx + 16 = 0 have equal roots?Solve 2x² − 5x + 3 = 0 by the quadratic formula.For x² − 6x + 9 = 0, find D and the nature of roots.For x² + 4x + 13 = 0, find the discriminant and classify roots.For ax² + bx + c = 0, the discriminant is:A rectangular plot has its length 3 m more than its width, and its area is 54 m². Find itsThe roots of x² − x − 12 = 0 are: