# polygons

## Area of Triangles

The area of a Triangle is the number of square units it takes to exactly fill the interior of a triangle. Formula for finding the area of a triangle is: A = (b • h) ÷ 2 Example 1: Step 1: Write the formula A = (b • h) ÷ 2 Step 2: Substitute the variables with the … Read more

## Polyhedrons

Polyhedrons are 3-dimensional shapes made up of many polygons. polyhedrons have a “first” and “last” name. they get their first name from the base shape, and their last name from whether or not they are prisms or pyramids. Pyramids are polyhedrons whose faces are all triangles and meet at one vertex. Prisms are polyhedrons whose … Read more

## Quadrilaterals

Types of quadrilaterals The types of quadrilaterals can be classified by relationships of their sides and angles. A general Quadrilateral has 4 sides and 4 angles. The following is a general quadrilateral. Parallelogram: A four-sided polygon with two pairs of parallel and equal sides. The following is a parallelogram. Rectangle: A rectangle is a parallelogram with … Read more