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NO.1075
中等
00:00
本题平均耗时：1分37秒
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正确率：59%
In the figure shown, the measure of angle BAC is 30 degrees. Triangles ABC, ACD, ADE, and AEF are similar. The area of triangle AEF is how many times the area of triangle ABC?
\(\frac {16} {9}\)
\(\frac {64} {27}\)
\(\frac {27} {8}\)
\(2\sqrt {3}\)
\(3\sqrt {3}\)
Select one answer choice.
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