1.

In an equilateral triangle ABC, \(\overline {AD} ⊥ \overline {BC} \). Then which of the following statements is correct?

A. 2AB2 = 3AD2
B. 4AB2 = 3AD2
C. 3AB2 = 4AD2
D. 3AB2 = 2AD2
Answer» D. 3AB2 = 2AD2


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