The length of the hypotenuse, line segment GH , in triangle GJH measures 6 cm. Line segment JH measures 2 cm. Which is the approximate measure of angle JGH ?

Since GH is the hypotenuse and JH is opposite angle JGH, use sine: sin(angle JGH) = JH/GH = 2/6 = 1/3. Taking the inverse sine gives angle JGH ≈ 19.5 degrees, so the correct choice is 19.5 degrees.

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