The side BC of an equilateral triangle ABC is extended to D such that BC =CD Prove that AD2=3AC2 - Maths - Triangles

Question

The side BC of an equilateral triangle ABC is extended to D such
that BC =CD Prove that AD2=3AC2

Dipali Mishra · Answer

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The side BC of an equilateral triangle ABC is extended to D such that BC =CD. Prove that AD2=3AC2.