Similar Figures Teacher Resources

Find Similar Figures lesson plans and worksheets
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Similarity and Dilations - Discover Properties of Similar Figures

For Teachers 9th - 12th Standards
Learners investigate properties of similar figures. In this properties of similar figures instructional activity, pupils construct similar figures using Cabri Jr. They dilate their figure to create a similar one, and discuss the...
7:22
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What are Similar Figures?

For Teachers 6th - 8th
Similar figures have the same shape, the same corresponding angles, but different lengths of their corresponding sides. The teacher explains just what all that means. She demonstrates how to compare the two shapes to prove they are similar.
1:48
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Congruent and Similar Shapes

For Students 6th - 12th Standards
By definition, a congruent shape remains similar, but similar shapes may or may not be congruent. Scholars watch a video explaining the sometimes-confusing concept. Practice problems ensure pupils demonstrate their understanding to...
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Similar Figures

For Students 6th - 8th
Triangles provide a terrific opportunity to explore proportionality! In this similar figures worksheet, math minds read a brief explanation pertaining to ratios and proportions within triangles. Then they are turned loose to try solving...
3:25
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Area and Perimeter of Similar Polygons: Lesson

For Students 7th - 11th
Find the square of the scale factor. A component of a large playlist on geometry discusses the ratios of the perimeters and areas of two similar polygons. The resource shows examples in finding the ratios that lead to a pattern.
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Congruent and Similar Figures - Problem Solving 15.2 Worksheet

For Students 4th - 6th
A theoretical NASA project is the foundation of this activity, in which learners will word to determine congruent and similar figures. They solve 4 word problems where they measure, draw and identify congruent and similar figures from...
4:48
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How Do You Find a Scale Factor in Similar Figures?

For Teachers 6th - 12th
Three angles of one triangle are equal to the corresponding angles in another triangle. Use a ratio of corresponding sides to find the scale factor. Actually, there are two scale factor values. The instructor will explain how to get both...
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Similar Figures

For Teachers 9th - 12th Standards
Your class will use a TI calculator to drag vertices of rectangles and triangles to observe what happens to ratios of pairs of sides within each figure. They will apply the definition of similarity to identify similar shapes. The...
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Similar Polygons

For Students 10th
In this similar polygons worksheet, 10th graders solve 10 different problems that include determining various similar polygons. First, they determine the perimeter of a second triangle given the measures of all angles in the first. Then,...
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Using Similar Polygons

For Students 10th
For this geometry worksheet, students use the properties of similar polygons to find the indicated missing length or the scale factor. The two page worksheet contains twenty-two questions. Answers are included.
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Ratios and Proportions with Congruent and Similar Polygons

For Students 8th - 11th Standards
Investigate how similar and congruent figures compare. Learners understand congruent figures have congruent sides and angles, but similar figures only have congruent angles — their sides are proportional. After learning the...
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Similar Shapes

For Students K - 1st Standards
In geometry, similar and congruent shapes are often confused. Shapes that are similar are the same shape, but a different size. This activity gives young learners some practice in identifying similar shapes. There are five polygons...
11:10
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Similar Shapes Sides

For Students 6th - 12th Standards
Scale up a lesson on similarity. Young mathematicians watch a video that investigates the sides of similar figures. They see how to calculate missing sides from the given measures using scale factors.
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Similar Figures

For Students 10th
In this geometry worksheet students explore similar polygons and determine measure of missing sides and angles. Students use indirect measurement with similar triangles and determine the area and volume of similar figures. The seven page...
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Similar Figures

For Students 7th - 9th
For this similar figure worksheet, learners identify objects that are similar. They draw polygons according to instructions and determine their similarity. This one-page worksheet contains four multi-step problems.
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Lesson 3-5: Proportions and Similar Figures

For Students 9th - 12th
In this similar figures worksheet, students use proportions to solve 6 short answer and multiple choice questions.  Students use proportions to answer questions about map scales and height of trees given shadow lengths.
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Similar Figures

For Teachers 7th - 11th Standards
Stations energize geometry learners to discover and create similar figures using congruent angles and proportional sides in a well-organized lesson plan. From the beginning discussion of equal ratios to the closing assessment of...
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Similar Shapes

For Students 8th - 11th Standards
Similar shapes are all about the scale. Given seven problems, pupils use scale factors to determine measurements within similar shapes. While solving the problem, scholars also determine whether two figures are similar and use area and...
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Congruent and Similar Figures - EL 15.2

For Students 4th - 8th
English language learners work through geometric vocabulary. They answer 6 true or false questions where they determine whether 2 drawings or figures, line segments, or angles, correspond to one another.
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Similar Figures

For Students 8th - 11th
Emerging math scholars evaluate pairs of parallellograms, triangles, rectangles, and trapezoids to determent wheter or not each is similar. This is an ideal homework assignment for reinforcing this skill
8:58
Lesson Planet

Similar Shapes Areas

For Students 6th - 12th Standards
Just how similar are the areas of similar figures? An educational YouTube video describes how to determine the areas of similar figures. Given the area of one figure and the measurements of corresponding sides of each figure, viewers see...
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Proportions: Similar Figures

For Students 9th - 10th
In this proportion and percent activity, students identify and complete 10 different problems that include identifying various figures and their relationship to other figures. First, they determine the value of x and y in the two similar...
1:25
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Proportions and Similar Figures

For Teachers 5th - 8th
Duane demonstrates how to find a missing length in figures that are similar. In this example he uses two similar triangles.
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Similar Figures

For Students 8th - 10th
In this similar figures worksheet, students identify similar figures from models and given dimensions. This two-page worksheet contains ten multiple choice problems.

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Similar Figures