Interactive
Curated OER

Area and Perimeter of Rectangles Worksheet (II)

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

Geometry Worksheets - Surface Area of Cylinders

For Students 9th - 12th
In this online math worksheet, students determine the surface area of cylinders given their interior dimensions. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
Interactive
Curated OER

Geometry Worksheets - Surface of Sphere

For Students 9th - 12th
In this online math worksheet, students calculate the surface area of a variety of spheres. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
Interactive
Curated OER

SAT Grid Ins Practice Test 05

For Students 12th
For this SAT practice test worksheet, 12th graders answer 10 short answer questions. Questions are from a variety of topics, but mainly ask about geometry concepts. The test is self-scoring.
Interactive
Curated OER

Area of Circle Worksheets

For Students 10th
In this geometry worksheet, 10th graders calculate the area of circle give either the radius or the diameter. The one page interactive worksheet contains ten questions. Answers and  hints are included. 
Interactive
Curated OER

Surface Area of Solids

For Students 10th
In this geometry worksheet, 10th graders determine surface area of a cylinder, a cone, a hemisphere, and a figure composed of a cylinder and a cone. The one page interactive worksheet contains four questions. Answers and hints are...
Interactive
Curated OER

Coordinate Geometry

For Students 6th - 8th
In this geometry activity, students 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
CK-12 Foundation

Simplification of Radical Expressions: Irrational Garden Plot

For Students 8th - 10th
All is not simple in the garden of rationals and irrationals. Learners use a context of a garden to practice simplifying irrational numbers involving radicals. They also find areas of garden with irrational side lengths.
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.