Question #a86ed
1 Answer
Jul 26, 2016
See explanation.
Explanation:
If we assume that the side of the triangle is
-
#AL=(asqrt(3))/2# -#AL# is a height in an equilateral triangle. -
#CL=BL=a/2# because#AL# is also the bisector of the triangle's side#BC#
so
QED