A) \[a\sqrt{3}\]
B) \[a\]
C) \[3a\]
D) \[{{a}^{2}}\]
Correct Answer: A
Solution :
In equilateral triangle all sides are equal. In\[\Delta ADB\] AD is a altitude so, In\[\Delta ADB\].\[\angle ADB\]is a right angleYou need to login to perform this action.
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