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Area of Triangle (base and height)

vCalc Reviewed
A=12⋅b⋅h
(b)Base
(h)Height

The Area of a Triangle Based on the Base and Height calculator computes the area of a triangle given the length of the base (b) and height (h).

INSTRUCTIONS:  Choose units and enter the following:

  • (b) Length of Base of Triangle
  • (h) Height of Triangle
AREA (A): The calculator returns the area in square meters (m 2).  However, this can be automatically converted to other area units (e.g. square feet) via the pull-down menu.
 

The Math / Science

The formula for the area of triangle is:

     A=12⋅b⋅h

where:

  • A = area of triangle
  • b = length of the base
  • h = vertical height

A triangle is a polygon with three sides, three vertices (corners), and three angles. Triangles can be classified based on the lengths of their sides and the measures of their angles as follows:

By Side Lengths:

  • Equilateral Triangle: All three sides are equal in length.
  • Isosceles Triangle: Two sides are equal in length.
  • Scalene Triangle: All three sides have different lengths.

By Angle Measures:

  • Acute Triangle: All three angles are less than 90 degrees.
  • Right Triangle: One angle is exactly 90 degrees.
  • Obtuse Triangle: One angle is greater than 90 degrees.

The sum of the interior angles of any triangle always adds up to 180 degrees. 

Triangle Calculators

References