Interactive
Curated OER

Area and Perimeter of Rectangles Worksheet (II)

For Students 10th
In this geometry worksheet, 10th graders determine area and perimeter of rectangles, given the width and the length. The one page interactive worksheet contains ten questions. Answers and hints are included. 
Interactive
Curated OER

Coordinate Geometry

For Students 6th - 8th
In this geometry worksheet, learners calculate the midpoint and distance between two points. They use the correct formula to solve the area and perimeter of polygons. There are 20 multiple choice questions with an answer key.
Interactive
Other

Area/perimeter Interactive Learning Sites for Education

For Students 2nd - 5th
Area/Perimeter - Interactive Learning Sites for Education is a resource that offers interactive activities for students to practice their knowledge of area and perimeter.
Interactive
Khan Academy

Khan Academy: Area of Triangles

For Students 6th Standards
Demonstrates the logic behind the formula for the area of a triangle. Includes several practice problems and their explanations.