What is the altitude of an equilateral triangle whose perimeter is 12?

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Answer 1 · 2016-03-08T16:34:46

Altitude of equilateral triangle #=2sqrt3#

Perimeter of equilateral triangle #=12#

Each side of triangle , #a=12/color(blue)(3) =4#

Formula for altitude of equilateral triangle #=color(purple)(sqrt3/2 * a#.

#=sqrt3/2 xx 4#

#=sqrt3/cancel2 xx cancel4#

#=sqrt3 * 2#

#=2sqrt3#