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

Classifying Triangles

Triangles can be classified by their angles and/or side lengths. Use the chart below to help you name triangles. Classify by the lengths of their sides Classify by the measures of their angles Equilateral has 3 congruent sides A Right triangle has 1 right angle Isosceles has 2 congruent sides An Acute triangle has 3 … Read more