Quia
Ixl Learning: Area of Trapezoids
Brush up on your math skills relating to the area of trapezoids then try some practice problems to test your understanding.
Quia
Ixl Learning: Area of Parallelograms
Brush up on your math skills relating to the area of parallelograms then try some practice problems to test your understanding.
Quia
Ixl Learning: Area of Rhombuses
Brush up on your math skills relating to the area of rhombuses then try some practice problems to test your understanding.
Quia
Ixl Learning: Area of Triangles
Brush up on your math skills relating to the area of triangles then try some practice problems to test your understanding.
Quia
Ixl Learning: Area of Rectangles
Brush up on your math skills relating to the area of rectangles then try some practice problems to test your understanding.
Rice University
Rice University: Cynthia Lanius: Geometry Online
This is a site for geometry lovers. Chock-full of puzzles, games, interesting geometry facts, and online activities.
University of Waterloo (Canada)
University of Waterloo: Cemc: Math Circles: 3 D Geometry Ii [Pdf]
This worksheet provides a variety of 3D geometry questions requiring higher order thinking skills. Questions include; finding the surface area of a prism, surface area of pyramid, surface area of a sphere, and platonic solids.
ClassFlow
Class Flow: Geoboards
[Free Registration/Login Required] Geoboards bring challenge into the classroom as the student uses methods to measure length, area, and perimeters of polygons.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help: Perimeter and Area of Triangles and Trapezoids
Get independent practice working with finding the perimeter and area of triangles and trapezoids. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
Illustrative Mathematics
Illustrative Mathematics: 3.md Shapes and Their Insides
The purpose of this task is to help students differentiate between a polygon and the region inside of a polygon so that they understand what is being measured when the perimeter and area are being found. Aligns with 3.MD.D.
Math Open Reference
Math Open Reference: Perimeter of a Rectangle
Learn about the perimeter of a rectangle with this handy reference guide. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Perimeter of a Parallelogram
Learn about the perimeter of a parallelogram with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
CK-12 Foundation
Ck 12: Geometry: Area of Composite Shapes
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to calculate the area of composite shapes. Students examine guided notes, review guided practice, watch instructional videos and...
Math Open Reference
Math Open Reference: Area of a Trapezoid
Learn about the area of a trapezoid with this helpful reference tool. Provides a detailed definition, examples, and interactive activities that enhance further explanation. Includes links to related topics.
Illustrative Mathematics
Illustrative Mathematics: 6.g Base and Height
The purpose of this task is to help students understand what is meant by a base and its corresponding height in a triangle and to be able to correctly identify all three base-height pairs. Aligns with 6.G.A.1.
Alabama Learning Exchange
Alex: Geometric Quilts
Students will use a square to investigate other polygonal shapes that can be formed. Students will work with these polygons to make designs that will later constitute cooperatively designed quilts. The quilts will be made by translating,...
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Medidas De Poligonos
In Spanish. Interactive activities dealing with the definition, angles and area of a polygon.
Vernet -Virtual Education Resources Network
Salon Hogar: Referencia Rapida De Formulas Geometricas
This site provides the user with a useful reference to different geometric forms, their elements, formulas, and areas. Entirely in Spanish.
Math Aids
Math Aids: Geometry
Great resource to practice and strengthen math skills pertaining to Geometry. Math worksheets are printable, may be customized, and include answer keys.
Texas Instruments
Texas Instruments: Circles: Circumference and Area
The idea of perimeter can be applied not only to polygons but to circles as well. The same idea can be said for the area of a circle. (Continued. See "before the activity.") [Requires Adobe Reader.]
Illustrative Mathematics
Illustrative Mathematics: 8.g Area of a Trapezoid
Eighth graders are given various dimensions of a trapezoid and are asked to find its area. This requires them to use the Pythagorean Theorem and to decompose the trapezoid into other polygons. Aligns with 8.G.B.7.
Math Open Reference
Math Open Reference: Perimeter of a Trapezoid
Learn about the perimeter of a trapezoid with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Perimeter of a Triangle
Learn about the perimeter of a triangle with this helpful reference tool. Provides a detailed definition, an example, and an internet activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Area of a Rectangle
Learn about the area of a rectangle with this helpful reference tool. Provides a detailed definition and interactive activities that enhance further explanation. Includes links to related topics.