CK-12 Foundation
Rotations in Radians: Clock Conundrum
Pupils use an interactive clock to set specific times. They apply math to an everyday task as they determine the measure of the angle formed by the hands in degrees and in radians.
Mathed Up!
Bearings
Keep the math straight and true. Using information learned about angle relationships, pupils determine drawn bearings, or draw a line with a given bearing. The accompanying video provides the definition of a bearing and its three...
Scholastic
Study Jams! Similar Figures
Discover how triangles are congruent based on their sides, angles, and proportionality. Learners explore the ways to determine similarity at their own pace, and then they practice afterwards with an assessment.
EngageNY
Segments That Meet at Right Angles
Can segments be considered perpendicular if they don't intersect? Learners look at nonintersecting segments on the coordinate plane and make conclusions about the lines that contain those segments. They determine if they are...
EngageNY
Special Triangles and the Unit Circle
Calculate exact trigonometric values using the angles of special right triangles. Beginning with a review of the unit circle and trigonometric functions, class members use their knowledge of special right triangles to find the value...
Concord Consortium
Double Pendulum
What's better than a pendulum for studying motion and periods? A double pendulum! Young physical scientists use an interactive to explore pendulum motion—times two. The resource boasts a host of parameters to change and a running graph...
Curated OER
Sorting Angles
In this sorting angles worksheet, young scholars distinguish the differences between right, obtuse and acute angles. Students determine what type of angle thirteen angles are as shown.
Curated OER
Angles and Parallel Lines
In this angles and parallel lines worksheet, 10th graders solve 27 different variations of angle types and parallel lines. They name a linear pair, a pair of vertical angles, a pair of complementary angles, and a pair of supplementary...
Curated OER
Tool Kit 1: Matching Self-Test - Angles
In this angle worksheet, students match given terms to a picture that describes the term. Vertical angles, parallel lines, supplementary angles, adjacent angles, right angles are samples of the 20 listed terms. This one-page worksheet...
Curated OER
Angle Constructions
In this angle constructions worksheet, 6th graders solve and complete 4 various types of problems. First, they construct a perpendicular bisector of two points. Then, students construct an angle bisector for the angle shown. In addition,...
Curated OER
Measuring Angles
For this measuring angles worksheet, 10th graders solve and complete 26 various types of problems. First, they use a protractor to find the measurement of each angle. Then, students state the Angle Addition Postulate for the three angles...
Curated OER
Quiz: Angles and Arcs in Circles - Central and Inscribed
In this angles and arcs in circles worksheet, students determine the angle and arc measurement in a circle from given information. This one-page worksheet contains ten problems.
Curated OER
Trig Word Worksheet 2: Angle of Depression
In this angle of depression activity, students determine the angle of depression, find the horizontal distance, and determine the angle of elevation. This two-page activity contains nine multi-step problems.
Curated OER
Geometry - Angles
In this geometry activity, 4th graders tell what type of angles are shown in 6 figures. They write the angle type on each blank line next to the angles.
Curated OER
Measuring, Drawing, and Naming Angles
In this angles instructional activity, students name and measure six angles. Students then draw four angles with a protractor given the degree measure.
Curated OER
Interior and Exterior Angles
In this interior and exterior angles worksheet, 10th graders solve 10 different problems that include determining the interior and exterior of various triangles. They determine the measure of an exterior angle and then they determining...
Curated OER
Geometry - Angles
In this geometry worksheet, 4th graders match 6 named angles to their characteristics. They work with right, acute, straight, reflex, obtuse, and complete rotation angles.
Curated OER
Inscribed Angles and Arcs
In this inscribed angles and arcs worksheet, 10th graders solve and complete 21 various types of problems. First, they find the measure of each inscribed angle. Then, students find the measure of each angle or arc in a circle with the...
Curated OER
Measuring Angles
In this measuring angles worksheet, students solve 10 problems in which angles are measured with a protractor and labeled with: acute, obtuse, right.
Curated OER
Angle Bisectors
In this angle bisectors worksheet, 10th graders solve and complete 12 different problems. First, they find the value of xand the measure of the indicated angles for each situation. Then, students find the values of each indicated term...
Curated OER
Polygons and Angle Measurement
In this polygons and angle measurement worksheet, students identify polygons and determine the measurement of each angle of the polygon. They identify parallelograms and justify why objects are or are not polygons. This four-page...
Curated OER
Find the Supplementary Angle
In this angle worksheet, students determine the measure of supplemental angles. There are 15 questions with a picture for each question.
Curated OER
Chapter 4 - Objective 3.1 - Perimeter & Angle Measure
In this perimeter and angle measure activity, students find the length of the side of triangles and rectangles from given information. They read story problems, write equations and solve the problem. This one-page activity contains ten...
Curated OER
Setting-up and Solving Linear Equations Using Knowledge of Angles
In this solving equations worksheet, students use their knowledge of angles to set-up and solve linear equations. The worksheet contains four problems and solutions are not provided.
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