Illustrative Mathematics
Finding an Unknown Angle
Teach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, students must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...
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Geometry - Angles Overview
Learners address 14 questions that include naming all pairs of opposite and supplementary angles for sets of intersecting lines and then, finding the measure of the unknown angle. They determine the measure of the angle that is...
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Supplementary, Complementary, and Vertical Angles
By using circles that they cut out and label themselves, learners literally "get a grip" on the angles they identify: supplementary, complementary, and vertical. They solve missing measurements based on properties of supplementary,...
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Solving Problems with Angles
Upper elementary math whizzes complete word problems having to do with measurements of angles. They complete 10 multiple choice problems.
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Hypatia: Angles
Introduce your young geometers to Hypatia, the first noted Greek female mathematician, and the properties of angles. Though this resource is missing worksheets that are needed to complete the lesson, the structure is sound and learning...
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Systems-Angle Problems
In this geometry worksheet, 10th graders use systems of linear equations to solve word problems which involve supplementary and complementary angles. The one page worksheet contains ten problems. Answers are not provided.
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Complimentary and Supplementary Angles
For this angle worksheet, 9th graders find the missing angles to form complimentary and supplementary pairs. This two page worksheeet contains eight complementaty angle problems and eight supplementary angle problems. A two-page...
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Complementary Angles
In this complementary angles worksheet, students match each given angle with its complement. There are 8 problems on the page.
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Complementary Angles (A)
In this angles instructional activity, students solve 6 problems in which the missing angle measurement in each set of complementary angles is calculated.
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Complementary Angles (B)
In this complementary angles activity, students use their geometry skills to identify the missing angle measurements in each set of 6 complementary angles.
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Types of Angles
In this types of angles activity, 10th graders solve 10 different problems that include various types of angles. First, they determine the number of degrees in an angle with two supplementary angles. Then, students determine the value of...
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Angle Relationships
In this angle relationships worksheet, 10th graders solve 7 problems related to the different types of angles that occur in pairs. First, they identify each pair of angles as adjacent, vertical, complementary, supplementary, and/or as a...
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How Do You Pay a Complement to an Angle?
Students observe and solve examples of the complementary angle theorem. They complete the How Do You Pay a Complement to an Angle worksheet, and write a response in their math journal.
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Naming Angles 2
In this naming angles worksheet, 10th graders complete 12 problems that identify and name various types of angles in figures. They name a pair of vertical angles and a linear pair in 8 of the problems. Then, students name a pair of...