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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 an isosceles triangle

by base and lateral side

Definition:

The Isosceles triangle is a variety of scalene triangle, which has two congruent sides (equal). The third side is called base.

The area of an isosceles triangle by base and lateral 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:

unde:

a — the lateral side of the triangle;

b — the base of triangle;

Calculator: area of an isosceles triangle


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

the lateral side of the triangle a

the base of triangle — b

 


the area of an isosceles triangle =

 

 

context information: contemporary and archaic unit of measurement of area