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Worksheet
Curated OER

Corresponding Angles

For Students 4th - 6th
In this corresponding angles worksheet, students use their knowledge of corresponding angles to determine the measurements of angles marked with a question mark.
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Worksheet
Curated OER

Pairs of Angles Homework

For Students 9th - 10th
In this algebra worksheet, students identify the missing angles. They use properties of angles, linear pair and vertical angles to find their missing measurement. There are 14 questions.
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Worksheet
Curated OER

Half Angle Formula

For Students 9th - 11th
In this half angle formula worksheet, students use half angle formulas to find the value of given angles. This one-page worksheet contains 1 multi-step problems.
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Lesson Plan
Curated OER

Double-Angle and Half-Angle Formulas

For Teachers 12th - Higher Ed
For this college level Pre-Calculus worksheet, students use the double-angle and half-angle formulas to evaluate trigonometric expressions and solve trigonometric equations. The six page worksheet contains fifty-six problems. Answers are...
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Worksheet
Curated OER

Four Coterminal Angle Problems

For Students 11th - Higher Ed
In this coterminal angle worksheet, students find two positive and two negative coterminal angles for the provided degree measure.  The solutions are not provided.
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Lesson Plan
Curated OER

Half Angle

For Teachers 9th - 12th
Students calculate the solution using half angles formulas. In this calculus lesson, students identify the different properties of a triangle using trigonometric properties. They identify the mean, altitude and angles of a triangle.
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Worksheet
Curated OER

Alternate Angles

For Students 5th - 10th
In this alternate angles worksheet, students find the measurement of the alternate angles in each problem. Students complete 6 problems.
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Lesson Plan
Curated OER

Polygon Angle Partners

For Teachers 5th - 6th
In this math worksheet, students analyze 6 geometric figures. Students label each polygon with its name and measure each inside angle. Students are instructed to compare their measurements with those of a partner.
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Worksheet
Curated OER

Pairs of Angles

For Students 9th - 10th
In this geometry learning exercise, students identify angles formed by intersecting lines. They apply the properties of angles do identify the missing measures. There are 12 questions.
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Worksheet
Curated OER

Angle Formulas

For Students 9th - 10th
For this geometry worksheet, students identify the different properties and characteristics of a circle. They use angle formulas to solve for the missing angles. There are 20 questions.
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Lesson Plan
Curated OER

Measuring Body Angles

For Teachers 8th - 10th
Learners use technology to graph and compare angles. For this geometry lesson, students range of motion in the environment. They identify the missing parts of polygons using similarity and congruence.
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Worksheet
Curated OER

Find Missing Angles of Triangles

For Students 5th - 6th
In this triangles worksheet, students find the missing angles of a set of 4 triangles. Answers are included on page 2.
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Lesson Plan
Curated OER

Shapes and Designs Investigation

For Teachers 6th
Sixth graders estimate angle measures and angle theroms. In this online interactive geometry lesson, 6th graders review types of angles, investigate angle theroms, and explore nonadjacent angles.
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Lesson Plan
Curated OER

Tomb Robbers

For Teachers 6th
Sixth graders identify benchmark angles as they are embedded into a circle grid. They observe the teacher using an angle ruler and complete a Star Spangled worksheet, play the game Tomb Robbers, and as a class discuss their game winning...
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Worksheet
Math Mammoth

Triangles 1

For Students 5th - 9th
In this triangles worksheet, students measure and calculate the measurements of eight triangles, their sums and classify the triangles as acute, obtuse or right.
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Worksheet
Curated OER

Shapes and Designs

For Students 10th
For this shapes and designs worksheet, 10th graders solve and complete 6 different types of problems. First, they fill in the first two columns of the table show with their shapes. Then, students measure the interior angles of each...
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Worksheet
Curated OER

Polygons

For Students 6th - 10th
In this polygons worksheet, students read about and complete many activities involving triangles, angles, and symmetry. Students complete 17 pages of activities.
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Worksheet
Curated OER

Chapter 8 Test: Geometry Vocabulary

For Students 7th - 9th
In this geometry activity, students match geometry words to illustrated examples. They find the missing angle of given polygons. This eight-page activity contains 45 problems. Answers are provided on the last two pages.
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Worksheet
Curated OER

Classifying Triangles

For Students 8th - 10th
In this classifying triangles worksheet, students explore given lengths or angle measurements and then classify each triangle as isosceles, scalene or equilateral. They also determine if the triangle may be right, acute or obtuse. This...
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Lesson Plan
Curated OER

Travel Triangles

For Teachers 8th - 11th
Students demonstrate and understanding of the three types of angles using triangles and quadrilaterals. In this angles lesson plan, students learn about acute, obtuse and right angles. They use cut-outs to find the areas of triangles and...
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Worksheet
Curated OER

Applied Trigonometry Problems

For Students 9th - 12th
In this applied trigonometry problems activity, learners solve 12 short answer word problems. Students use trigonometric ratios to find angles of elevation and depression. Learners find distances between objects using trigonometric...
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Lesson Plan
Curated OER

Around The Stop Sign

For Teachers 6th - 12th
Students analyze a drawing of a regular octagon inscribed in a circle to determine angle measures, using knowledge of properties of regular polygons and the sums of angles in various polygons to help solve the problem. They use...
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Lesson Plan
Curated OER

Symmetry in Paper Airplanes

For Teachers 5th - 8th
Students explore symmetry.  For this geometry and scientific inquiry lesson, students design paper airplanes with middle line symmetry, as well as right, obtuse, and acute angles.  Students measure the plane's angles using a...
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Worksheet
Curated OER

Triangle Similarity

For Students 10th
In this triangle similarity worksheet, 10th graders solve and complete 12 different problems that include defining similar and 3 similar statements using only sides and angles. First, they determine if each pair of triangles shown are...

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