Area of Triangle (base and 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

The Math / Science

The formula for the area of triangle is:

     `A = 1/2 * 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

• Area of Triangle (base and height)
• Area of Triangle (two sides and interior angle)
• Area of Triangle (two angles and interior side)
• Area of Triangle (three sides)
• Area of Equilateral Triangle
• Area of Triangle (three points)
• Height of Triangle
• Width of Triangle
• Triangle Perimeter
• Interior Angle of a triangle based on the length of three sides
• Semi-perimeter of a triangle
• Area of Circle Within a Triangle
• Area of Circle Around a Triangle
• Area between two vectors
• Triangle Volume

References

• Light and Matter(Dr. Benjamin Crowell) Chapter 0.10 Significant Figures.
• Light and Matter(Dr. Benjamin Crowell) Chapter 1.2 Scaling of Area and Volume
• Light and Matter(Dr. Benjamin Crowell) Chapter 3.6 Algebraic results for constant acceleration