Question #33ad2

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Answer 1 · 2017-10-13T18:04:25

Let's have a look.

Let the length of each side of an equilateral triangle be #a#.

Therefore, area of the triangle is #rarr#

#A=sqrt(3)/4a^2#.

Substitute the value of #a# by #2# & get the desired answer.

Hope it Helps:)

Answer 2 · 2017-10-18T13:57:51

#sqrt3#

we could use

#A_(Delta)=1/2 a b sinC#

for an equilateral triangle all interior angles are #60^0#

so we ahve

#A_(Delta)=1/2xx2xx2xxsin60#

#A_(Deta)=2xxsqrt3/2#

#=sqrt3#