Question

if an equilateral triangle ABC E is an any point on BC such that a BE equal to 1 /4 BC prove that 16 square equal to 13 ab square​

Answer 1

Step-by-step explanation

Given in equilateral ΔABC, 4BD = BC In right ΔAED, AD2 = DE2 + AE2 → (1) [By Pythagoras theorem] Recall that the altitude of an equilateral triangle is (√3/2) times its side. AD2 = 13/16 BC2 ∴ 16AD2 = 13BC2