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unit of measure: the base unit | the supplementary unit | the derived unit

geometry: the area of a flat figure | the area of a solid | the volume of the solid


The area of equilateral triangle

by side

Definition:

The equilateral triangle is a variety of scalene and isosceles triangle, which is characterized by the congruence (equality) of all its sides and angles.

The area of equilateral triangle by side, is determined by a modified version of the formula for right triangle – half product of the base and its height, deducted by one of congruent sides as hypotenuse.

Computing relationship:

where:

a — the side of triangle.

Calculator: the area of equilateral triangle


For separation of number integers and decimals, use the symbol – point [.]

the side of triangle — a

 


the area of equilateral triangle =

 

 

context information: contemporary and archaic unit of measurement of area