# How to Calculate the Area of a Triangle?

Finding the area of a triangle is easier than it seems. To calculate the area of various kinds of triangles, follow these instructions.

http://www.wikihow.com/Calculate-the-Area-of-a-Triangle

## How to Find the Area of a Parallelogram and a Triangle?

Area is the amount of space located within a geometric shape, such as a triangle, circle, parallelogram, square, etc. You can quickly figure out the area of a triangle or a parallelogram by perform...
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http://www.ehow.com/how_8100729_area-parallelogram-triangle.html

## How to Find the Area of an Obtuse Triangle?

Three sides make up the basic shape of a triangle, but the types of angles that connect the sides together define what kind of triangle it is. Different sized angles are given different names to he...
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http://www.ehow.com/how_8449711_area-obtuse-triangle.html

## How to Find the Area of a Triangle in Trigonometry?

The common formula for a triangle's area, which equals 1/2 * altitude * base, applies to all types of triangles. But what if you do not know those measurements? Another way to solve a triangle's ar...
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http://www.ehow.com/how_8401161_area-triangle-trigonometry.html

## How to Find the Area of a Triangle From Its Vertices?

To find the area of a triangle where you know the x and y coordinates of the three vertices, you'll need to use the coordinate geometry formula: area = the absolute value of Ax(By - Cy) + Bx(Cy - A...
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http://www.ehow.com/how_8489292_area-triangle-its-vertices.html