Question #eb2a1

1 Answer
sankarankalyanam
Feb 11, 2018

Area of triangle #A = 230.947# sq. units

Explanation:

Given : h = 20 units

In an equilateral triangle, side and height are in the ratio #a : h = 1 : sqrt3/2#

#a = (2/sqrt3)h#

Let's say side as 'a'

Area of triangle #A = (1/2) a h => (1/cancel2) (cancel2/sqrt3)h * h#

#:.A = h^2/sqrt3 = 20^2/sqrt3 =400/1.732 ~~ 230.947# sq units

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