Area of Triangle A ½ b h square units. Since the area of a parallelogram is A B H the area of a triangle must be one-half the area of a parallelogram. 12 x Base x Height.
The letter K is used for the area of the triangle to avoid confusion when using the letter A to name an angle of a triangle.
Where a b and c are the sides of the triangle and s semi-perimeter ie half the perimeter of the triangle. Areas of Triangles The most common formula for finding the area of a triangle is K ½ bh where K is the area of the triangle b is the base of the triangle and h is the height. The area of a triangle may required to be calculated in SI or metric or US customary unit systems therefore this triangle area calculator is featured with major measurement units conversion function to find the output values in different customary units such as inches in feet ft meters m centimeters cm millimeters mm by. To find the area of a triangle youll need to use the following formula.