Interactive
Curated OER

Area of Shapes

For Students 7th - 9th
In this area of shapes learning exercise, students determine the area of equilateral triangles, acute triangles, and compound figures. This one-page learning exercise contains 3 multi-step problems.  Answers are provided with this...
Interactive
Curated OER

My Test Book: Geometry Skills 2

For Students 5th - 7th
For this online interactive math skills worksheet, students solve 10 multiple choice math problems regarding geometry skills. Students may submit their answers to be scored.
Interactive
Calculator Soup

Calculator Soup: Equilateral Triangles Calculator

For Students 9th - 10th Standards
An equilateral triangle is a special case of a triangle where all 3 sides have equal length and all 3 angles are equal to 60 degrees.
Interactive
Calculator Soup

Calculator Soup: Regular Polygon Calculator

For Students 9th - 10th Standards
Use this calculator to calculate properties of a regular polygon. Enter any 1 variable plus the number of sides or the polygon name. Calculates side length, inradius, circumradius, area, and perimeter.