Area and Perimeter of Triangles

Area and Perimeter of Triangles

Below you’ll find a variety of printable “Area and Perimeter of Triangles Worksheets!”

Perimeter is the distance, or path, around (written in units) and area is the space inside (written in square units). Calculating the perimeter is easy. Just add up the lengths of all the sides!

Area may seem more confusing, but the formula is quite simple.
A = ½ b • h, where b is the base and h is the height.

With over 30 worksheets available, you’ll find just what you’re looking for to master the area and perimeter of composite shapes. All of our Worksheets include answer keys. Didn’t find what you were looking for? Check out our other Geometry worksheets!

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Area of Triangles (Printable PDFs)

In these worksheets, students will practice calculating the space inside. The formula for the area of a triangle is A = ½b • h, where b is the base and h is the height. For right triangles, the height will be the length of the vertical side (the side going straight up and down). Label answers in square units. All worksheets include answer keys.

Perimeter of Triangles (Printable PDFs)

In these perimeter of triangles worksheets, students will practice finding the distance around simple triangles. Just add up the lengths of all three sides, and label your answer in units: yards, inches, feet, etc. All worksheets include answer keys.