Question

find the area of this triangle

Answer 1

as the triangle is eqilateral

so, ar(triangle)=
under root 3/4 ×a^2
_/3÷4×16^2
_/3÷4×256
_/3×64
64_/3cm^2

hope this helps u....

Answer 2

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Question:-

★ Find the area of triangle

Given:-

★ Side(a) = 12cm

Formula Used:-

$\sf\boxed{Area\:of\: equilateral\: triangle\:=\:\dfrac{\sqrt{3}}{4} \ a^{2}}$

Solution:-

$\sf{Area\:=\:\dfrac{\sqrt{3}}{4} \ a^{2}}$

Put value of a (side)

$\sf{Area\:=\:\dfrac{\sqrt{3}}{4} \ 12^{2}}$

$\sf{Area\:=\:\dfrac{\sqrt{3}}{4} \times 144}$

$\sf{Area\:=\:\dfrac{\sqrt{3}}{\cancel{4}} \times \cancel{144}}$

$\sf{Area\:=\: \sqrt{3} \times 36}$

$\sf\boxed{Area\:=\:36\sqrt{3} \ cm^{2}}$