Curated OER
Classifying Triangles Worksheet 2
In this classifying triangles activity, students classify triangles as either scalene, isosceles, or equilateral. Students complete 9 problems.
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Find the unknown angle in the following triangles
In this unknown angle activity, students find the unknown angle in the triangle that gives them 2 angles. Students find 9 unknown angles.
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Perimeter of Equilateral Triangle
In this perimeter worksheet, students calculate the perimeter of 6 equilateral triangles.
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Identifying Triangles
In this triangles practice worksheet, learners respond to 4 questions that require them to identify the pictured triangles as acute, right, obtuse, scalene, isosceles, or equilateral triangles.
Balanced Assessment
Refiguring Pythagoras
Why was Pythagoras so obsessed with squares? The assessment task posits the question of whether the geometric interpretation of the Pythagorean Theorem holds for figures other than squares. Scholars first consider the case of semicircles...
Mathwire
Shamrock Paths
What could St. Patrick's Day and Pascal's triangle possibly have in common? Trace the pattern in a holiday-themed instructional activity that prompts learners to find the word shamrock as many times as they can.
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Triangle Puzzler
Students are introduced to some basic concepts of geometry. They explain that the definition of a triangle is a figure with three sides, three angles, and three points. Triangles can be named by using three points in their correct sequence.
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Quiz: Triangle Inequality Theorem
In this triangle inequality theorem worksheet, students determine the lengths of the sides of triangles and identify the measure of angles. This one-page worksheet contains ten triangle theorem problems.
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Triangle Attributes and Measures
Seventh graders explore the concept of triangles. In this triangles lesson, 7th graders sort triangles according to various attributes such as acute, obtuse, isosceles, or equilateral. Students find the area and perimeter of triangles.
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Properties of Triangles
Pupils explore the relationship between how big a side of a triangle is and how big its opposite angle is by creating triangles using an interactive website.
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Hands On: Area of Triangles
In this area of triangles practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Triangles
In this triangles learning exercise, students solve for the missing angles and missing sides on the triangles given. Students complete 12 problems total.
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Independent Practice 2: Triangles
In this triangle instructional activity, students identify given triangles according to their sides and angles. Afterward, students draw triangles to match given descriptions. This one-page instructional activity contains 15 problems.
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Triangle Inequality Theorem
Learners identify properties of triangles. In this geometry lesson plan, students create triangles using three different segments. They make conjectures and predictions.
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Constructions of Isosceles and Equilateral Triangles
Pupils explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has to...
Curated OER
Patterns in Pascal's Triangle
Young scholars examine the patterns that exist in Pascal's Triangle. They explore multiples and factors. Sudents use an applet to create and color the multiples in Pascal's Triangle.
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Special Right Triangles
Students identify the different parts of a right triangle. In this geometry lesson, students use the Pythagorean Theorem to identify missing sides and angles of a right triangle. They work with irrational and rational roots.
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Angles And Triangles
Seventh graders participate in a activity that is focused upon the concepts of classifying different angles and triangles. They practice classifying triangles according to its kind that includes types of angles, congruence, and vertices....
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Triangle Exercises
In this math worksheet, students determine the name for each triangle according to its classification. Then they create a truss construction model.
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Area of Triangles
In this math learning exercise, students draw two triangles and one pentagon. Then they use the correct formula to calculate the area for each.
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Find the Missing Side of the Right Triangle
In this find the missing side of the right triangle worksheet, middle schoolers use the Pythagorean theorem to find the missing side, given the other 2 lengths, for 4 triangles.
Curated OER
Family Activity: Triangles and Quadrilaterals
For this triangles and quadrilaterals worksheet, students solve 7 short answer problems. Students find objects around the house that are constructed from triangles, parallelograms, trapezoids, squares, rectangles. Students sketch the...
Curated OER
Triangles
In this triangles worksheet, students name the kind of triangle that is shown in the picture. Students name 3 different kinds of triangles.
Curated OER
Right Triangles & Pythagorean Theorem
For this math worksheet, students find the missing angles for the right triangles using the Pythagorean Theorem. Then they label the adjacent and opposite angles.
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