What is the area of an equilateral triangle with a side of R cm?


Answer:

R234 cm2

Step by Step Explanation:
  1. As per Heron's formula, the area of a triangle with sides a,b and c and perimeter 2S=S(Sa)(Sb)(Sc)
  2. Here, a=b=c=R and S=32×a=3R2.
  3.  Therefore, Area =3R2×(3R2R)×(3R2R)×(3R2R)=3R2×R2×R2×R2=R234cm2

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