Area of an equilateral triangle

P=\dfrac{a^2\sqrt{3}}{4}

Result unit: area units

What it describes

The area of an equilateral triangle with side

a

P

area

a

side length

A ready-made formula for the area of an equilateral triangle with side

a

— it follows from the height

h=\tfrac{a\sqrt3}{2}

An equilateral triangle (in hexagons, regular pyramids).

The side of an equilateral triangle is

a=4

. Find the area.

Substitution

a=4

Result

P=\dfrac{16\sqrt3}{4}=4\sqrt3\approx6.93

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