Let ABC be an equilateral triangle and AD perpendicular to BC, then AB2 + BC2 + CA2 = ? Options: A . &nbsp3AD2 B . &nbsp5AD2 C . &nbsp2AD2 D . &nbsp4AD2

Let ABC be an equilateral triangle and AD perpendicular to BC, then AB2 + BC2 +

Question

Let ABC be an equilateral triangle and AD perpendicular to BC, then AB2 + BC2 + CA2 = ?

Options:

A . 3AD2

B . 5AD2

C . 2AD2

D . 4AD2

Answer: Option D

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