Congruent Triangles Teacher Resources

Find Congruent Triangles lesson plans and worksheets
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Common Core Math: 8th Grade

For Teachers 8th Standards
Check out the Common Core with a collection that represents all the 8th grade math standards. Most resources engage multiple standards but the main one is listed on the notes section of each tab. 
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Geometry Practice: G.G.28 #1: Congruent Triangles

For Teachers 9th - 12th
In this congruent triangles worksheet, students solve four multiple choice problems. Students determine which statement is the appropriate reasoning to say that two triangles are congruent.
2:41
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Congruent Triangles: Lesson

For Students 9th - 12th Standards
Given two congruent triangles, the resource provides the definition of congruent triangles and marks the corresponding parts. The portion of a basic geometry playlist shows the triangles are congruent by moving one on top of the other...
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Exploring Congruent Triangles

For Students 8th - 9th
In this congruent triangles worksheet, students solve 12 different equations related to writing a correspondence statement for triangles in the given diagrams. They complete each correspondence statement and write a congruence statement...
9:09
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Congruent Triangles

For Students 6th - 12th Standards
Young mathematicians learn about the many theorems related to congruent triangles. The video allows them to stop and replay the content as many times as needed to take notes. Extra practice problems work as reinforcement for each skill...
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Geometry: Congruent Triangles HW#6

For Students 8th - 10th
In this geometry worksheet, students name the congruent triangles. If the triangles are not congruent, students explain why. For the congruent triangles, students state which congruence theorem is being used. There are 7 questions on...
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Congruent Triangles

For Teachers 9th - 11th Standards
Is this enough to show the two triangles are congruent? Small groups work through different combinations of constructing triangles from congruent parts to determine which combinations create only congruent triangles. Participants use the...
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Two Congruent Triangles

For Students 9th - 12th Standards
See how parallelograms can produce congruent triangles. Given a diagram of a parallelogram, scholars must show that two triangles are congruent. The triangles are made from the diagonals of the parallelogram.
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Testing For Congruent Triangles

For Teachers 9th - 12th
High schoolers define and discuss congruency and the corresponding parts between congruent triangles. They create a pair of congruent triangles, test for congruency, and complete a worksheet.
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Congruent Triangles

For Students 10th
In this congruent triangles learning exercise, 10th graders solve and complete 16 different problems that include determining various triangles congruent. First, they use arcs and slash marks to show the congruent angles and sides. Then,...
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Using Corresponding Parts of Congruent Triangles

For Students 10th
In this congruent triangles worksheet, 10th graders solve and complete 11 different types of problems. First, they name a pair of overlapping congruent triangles in each diagram. Then, students state whether the triangles are congruent...
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More Congruent Triangles

For Students 10th
For this congruent triangles worksheet, 10th graders solve 6 various forms of problems that include a proof and a word problem. First, they draw and label triangles and indicate the additional pairs of corresponding parts that would have...
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Congruent Triangles

For Students 10th
In this congruent triangles worksheet, 10th graders solve and complete 10 different problems that include various forms of triangles. First, they name the method for proving each set of triangles congruent using the given information....
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Congruent Triangles

For Students 10th
In this geometry worksheet, 10th graders identify the corresponding parts of congruent triangles.  The one page worksheet contains four problems.  Answers are not provided. 
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Congruent Triangles

For Students 9th - 11th
In this congruent triangles worksheet, students identify congruent triangles using the hypotenuse-leg congruence theorem. They determine the length of a missing side and write proofs to determine congruence of triangles. This three-page...
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Congruent Triangles

For Students 10th
In this congruent triangles learning exercise, 10th graders solve and complete 10 different problems to determine whether each set of triangles is congruent or not. First, they copy each diagram onto a piece of paper and mark up the...
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Congruent Triangles

For Students 10th
In this congruent triangles worksheet, 10th graders solve and complete 13 different problems. First, they use the illustrated congruent triangles to show other congruency in each problem. Then, students determine and prove the angle...
1 In 1 Collection
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Verifying Triangles are Congruent

For Teachers 9th - 11th Standards
Here the focus is on triangle congruence. Through an activity that requires investigation, questioning, and working together, geometers learn to identify corresponding parts of triangles to determine if the triangles are congruent....
7:31
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How Do You Identify Corresponding Parts in Congruent Triangles?

For Teachers 6th - 10th
Congruent, corresponding, congruent corresponding. If two figures are congruent, then their corresponding sides and corresponding angles are congruent. Is this to be believed? Watch this video and see if the proof is in the pudding.
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Congruent Triangles: Class Quilt

For Students 4th - 8th
In this art and congruent triangles worksheet, students read directions in order to make a congruent triangle class quilt. The result is a nicely-made community piece of art.
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Congruent Triangles

For Students 6th - 8th
In this congruent triangles worksheet, students solve and complete 31 different problems. First, they circle the theorem that proves the two triangles are congruent. Then, students write the letter of the correct choice in each box. They...
1 In 1 Collection 4:00
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Find the Area of a Right Triangle

For Students 5th - 7th Standards
Help your class develop a greater understanding of the area of a right triangle. The video starts by reviewing the area of a rectangle and noting that the rectangle is made up of two congruent triangles. Learners are then shown that in...
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Congruent Triangles

For Teachers 7th - 9th Standards
Geometers prove that triangle PQR is congruent to triangle ABC by describing any combination of rotations, reflections, and translations that would prove it so. There is only this single task on the handout, but a detailed explanation of...
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Congruent Triangles Applications

For Students 9th - 12th Standards
Triangles are all about threes, and practicing proving postulates is a great way to get started. The first page of the worksheet provides a brief introduction of the different properties and postulates. The remaining pages contain...

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Congruent Triangles