Right Triangles and Trigonometry

SAT Math· difficulty 3/5

A right triangle has angle 30°30°, opposite leg 77. What is the hypotenuse?

  • A

    1414

    check_circle
  • B

    73\frac{7}{\sqrt{3}}

  • C

    77

  • D

    737\sqrt{3}

Explanation

sin30°=7h=12\sin 30°=\frac{7}{h}=\frac{1}{2}, so h=14h=14.

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