Sun June 01, 2008 By: Adil Khan


Expert Reply
Mon June 02, 2008

Since PQR is an equilateral triangle all the altitudes will be of same lengths and each altitudes will divide the sides of triangle in 2 equal parts.

In 1 small triangle 1 side is "a" other is "2a" and 3rd (altitude) we need to find.


Let that altitude = x

a2 + x2 = (2a)2

x2 = 4a2 - a2

x2 = 3a2

x = 3 a

altitude = 3 a



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