Scholastic
Scholastic: Study Jams! Math: Geometry: Similar Figures
Solve word problems step by step to determine similar figures.
CK-12 Foundation
Ck 12: Geometry: Scale Factor of Similar Polygons
[Free Registration/Login may be required to access all resource tools.] Recognize the ratio of corresponding side lengths of similar figures as scale factor.
CK-12 Foundation
Ck 12: Geometry: Similar Polygons and Scale Factors
[Free Registration/Login may be required to access all resource tools.] This concept teaches students what similar polygons are and how to use scale factors to solve for missing information in similar polygons.
CK-12 Foundation
Ck 12: Geometry: Similar Polygons and Scale Factors
[Free Registration/Login may be required to access all resource tools.] Apply the properties of similar polygons.
Beacon Learning Center
Beacon Learning Center: Sam's Similar Shapes
Students learn about and practice identifying similar figures in this interactive web lesson.
CK-12 Foundation
Ck 12: Geometry: Corresponding Parts of Similar Figures
[Free Registration/Login may be required to access all resource tools.] In this lesson, students identify corresponding parts of similar figures. Students examine guided notes, review guided practice, watch instructional videos and...
CK-12 Foundation
Ck 12: Geometry: Area and Perimeter of Similar Polygons
[Free Registration/Login may be required to access all resource tools.] In this lesson students find the ratios of the perimeters and areas of similar polygons. Students examine guided notes, review guided practice, watch instructional...
CK-12 Foundation
Ck 12: Geometry: Area and Perimeter of Similar Polygons
[Free Registration/Login may be required to access all resource tools.] This concept teaches students to find area and perimeter of similar polygons using ratios. Students examine guided notes, review guided practice, watch instructional...
Math Planet
Math Planet: Geometry: Similarity: Polygons
Provides an explanation, examples, and a video lesson all related to similar polygons. [0:54]
Varsity Tutors
Varsity Tutors: Hotmath: Similar Figures
Find a clear explanation of similar figures. Discusses how they can be transformed through a sequence of rotations, reflections, translations, and dilations. Explanations are supported with illustrated examples.
Shmoop University
Shmoop: Basic Geometry: Similar Figures
The geometry resource explores similar figures. Notes, examples, and practice exercises are included.
Alabama Learning Exchange
Alex: Similar Figure Activity
The purpose of this lesson is to allow middle schoolers to self-discover the relationships between similar figures. The students should then take what they learn about these relationships and apply these concepts to problem-solving.
Math.com
Math.com: Similar Figures
This example provides a clear explanation of how to compare figures to see if they are similar and the formula to determine if the ratios are equal. Interactive practice activities are provided.
CK-12 Foundation
Ck 12: Geometry: Indirect Measurement
[Free Registration/Login may be required to access all resource tools.] In this lesson students find unknown measurements indirectly using the ratios and proportions of similar figures. Students examine guided notes, review guided...
CK-12 Foundation
Ck 12: Geometry: Unknown Measures of Similar Figures
[Free Registration/Login may be required to access all resource tools.] Find unknown side lengths in similar figures.
CK-12 Foundation
Ck 12: Geometry: Unknown Measures of Similar Figures
[Free Registration/Login may be required to access all resource tools.] Use proportions to find unknown measures in similar figures and then apply these measures to indirect measurement.
CK-12 Foundation
Ck 12: Geometry: Similarity
[Free Registration/Login may be required to access all resource tools.] Recognize similarity in figures
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Similarity
This site contains a lesson plan for high school age students. The objective is to discover the factor of proportionality in similar polygons and to relate this factor to the perimeters and areas of similar polygons.
Texas Instruments
Texas Instruments: Similarity and Dilations
Students will discover properties of similar figures using the TI-89 and CABRI Geometry II to use dilations to dynamically manipulate figures.
The Math League
The Math League: Similar Figures
This tutorial explains what similar figures are in geometry and provides examples.
Mangahigh
Mangahigh: Shape: Recognize Similar Shapes
Determine if objects are similar by looking at proportions and the shape.
Mangahigh
Mangahigh: Shape: Solve Problems With Similar Shapes
Test your knowledge of similar triangles and shapes.
CK-12 Foundation
Ck 12: Similar Polygons and Scale Factor
[Free Registration/Login Required] Students will follow the given steps to solve the given equation. Click learn more to watch a video and click challenge me to answer a practice question.
CK-12 Foundation
Ck 12: Area and Perimeter of Similar Polygons
[Free Registration/Login Required] Students move points to make diagonals in order to solve for area and perimeter of polygons. Click challenge me to answer practice questions.