In a 30-60-90 right triangle, the side opposite the 30° angle has length 7. What is the length of the side opposite the 60° angle?
A$14$
B$7$
C$7\sqrt{2}$
D$7\sqrt{3}$
Answer & Solution
Correct answer: D. $7\sqrt{3}$
In a 30-60-90, sides oppose 30°, 60°, 90° in ratio $1 : \sqrt{3} : 2$. If the side opposite 30° is 7, the side opposite 60° is $7\sqrt{3}$.
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