Activity
Analyze Math

Analyze Math: Rhombus Problems

For Students 9th - 10th Standards
The geometry tutorial explores the definition, area, and properties of a rhombus. The activity has several examples with detailed solutions.
Unit Plan
Wolfram Research

Wolfram Math World: Rhombus

For Students 9th - 10th
This math site explains properties of the rhombus, gives a visual aid to help with the formula given for it's area.
Activity
BBC

Bbc: Area in General

For Students 4th - 7th Standards
You can pick up some valuable pointers on how to find the area of a triangle, rectangle, and other quadrilaterals. When you finish working your way through the pages you can take an on-line "Test Bite," and check your understanding.
Activity
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Polygons and Areas of Plane Figures

For Students 9th - 10th Standards
Twenty-five problems cover the topics of polygons and finding the area for various plane figures. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Handout
Quia

Ixl Learning: Rhombuses

For Students 3rd - 5th Standards
Brush up on your math skills relating to rhombuses then try some practice problems to test your understanding.
Unit Plan
Khan Academy

Khan Academy: Area of Trapezoids

For Students 5th - 7th Standards
Practice finding the areas of trapezoids. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Interactive
Calculator Soup

Calculator Soup: Rhombus Calculator

For Students 9th - 10th
Calculate certain variables of a rhombus depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of a rhombus.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Area and Perimeter of Rhombuses and Kites

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students calculate the area and perimeter of a rhombus or kite. Students examine guided notes, review guided practice, watch instructional videos and...
Activity
Ministry of Education and Universities of the Region of Murcia (Spain)

Ministerio De Educacion Y Ciencia: Figuras Geometricas en El Plano

For Students 9th - 10th Standards
Interactive activities dealing with the areas of quadrilaterals figures.
Activity
CK-12 Foundation

Ck 12: Area and Perimeter of Rhombuses and Kites

For Students 5th - 7th
[Free Registration/Login Required] Students are given the two diagonals of a kite of rhombus and are to determine the area and perimeter. Click challenge me to answer practice questions and click learn more to watch a video.
Handout
Varsity Tutors

Varsity Tutors: Hotmath: Algebra Review: Rhombus

For Students 9th - 10th Standards
Find a quick, concise explanation of a rhombus. An example is given and clearly explained.
Handout
Wolfram Research

Wolfram Math World: Squares

For Students 9th - 10th Standards
MathWorld provides multiple definitions and formulas for the mathematical term, square.
Handout
Quia

Ixl Learning: Parallelograms

For Students 3rd - 5th Standards
Brush up on your math skills pertaining to parallelograms then try some practice problems to test your understanding.
eBook
Math Planet

Math Planet: Geometry: Parallelogram, Triangles Etc

For Students 9th - 10th Standards
Resource examines the area of geometric solids through examples and a video lesson. [0:39]
Unit Plan
BBC

Bbc: Bitesize: Maths: 2 D Shapes

For Students 2nd - 8th Standards
Learn about the properties of 2-D shapes: circles, triangles, polygons, and quadrilaterals. Includes information, video, and examples about each, with games and quizzes for reinforcement.
Interactive
Calculator Soup

Calculator Soup: Parallelogram Calculator

For Students 9th - 10th Standards
Calculate certain variables of a parallelogram depending on the inputs provided. Calculations include side lengths, corner angles, diagonals, height, perimeter, and area of parallelograms.