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Using Trigonometry to Find Side Lengths of an Acute Triangle
Not all triangles are right! Pupils learn to tackle non-right triangles using the Law of Sines and Law of Cosines. After using the two laws, they then apply them to word problems.
EngageNY
The Side-Angle-Side (SAS) and Side-Side-Side (SSS) Criteria for Two Triangles to Be Similar
Playing with mathematics can invoke curiosity and excitement. As pupils construct triangles with given criteria, they determine the necessary requirements to support similarity. After determining the criteria, they practice...
Curated OER
Math On Your Lap Quilt
Get creative juices flowing when you allow groups to figure out a procedure for how to find the area of squares and rectangles. They may use the individual patchwork blocks, or they may design one using the Design Template.
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Angles in Art Lesson
Students examine the correlation between art and math. Using their computers, students construct and measure angles. Students identify the properties of angles and polygons. They engage in the Angles program on their Palm and use the...
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Angles of Elevation and Depression
In this angles of elevation and depression activity, 10th graders solve 4 word problems that are related to determining the angles of elevation and depression. First, they define angle of elevation and angle of depression as used in the...
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Angles and Parallel Lines
In this angles and parallel lines learning exercise, 10th graders solve 12 different types of problems that include measuring various angles and parallel lines in given figures. First, they find the measure of each angle using the figure...
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Angles and Arcs
In this angles and arcs worksheet, 10th graders solve 8 different problems that relate to determining the measure of various angles and arcs of a circle. First, they define a central angle and the difference between a major and minor...
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Exploring Angles
In this exploring angles worksheet, 10th graders solve 12 various types of problems that are related to measuring various angles. First, they name the vertex of an angle and determine whether it appears to be acute, obtuse, right, or...
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Polygons - Sum of Interior Angles
For this polygon worksheet, learners determine the sum of the interior angles of a figure. Given the sum of the interior angles, they determine the number of sides of a polygon and the measure of one central angle. This one-page...
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Angles of Elevation and Depression
For this angles of elevation and depression worksheet, 10th graders solve 6 word problems that include finding angles of elevation and depression. They solve each problem, rounding the measures of segments to the nearest hundredth and...
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Plain Figures and Measuring Figures
Students investigate basic geometric concepts. In this geometry lesson, students explore solids through measuring and modeling. This assignment models the importance of understanding concrete objects in geometry.
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Angle and Radian Measure
In this angle and radian measure learning exercise, students find the measurement of a central angle. Students determine the speed of rotation, linear speed of a point, and radians per second. This two-page learning exercise contains...
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Angles and Arcs
In this angles and arcs worksheet, 10th graders solve 18 various types of problems related to determine various angles and arcs of a circle. First, they find the measure of each angle and arc of the first circle shown. Then, students...
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Geometry, Lines and Angles
For this lines and angles worksheet, students answer 10 multiple choice questions about lines and angles.
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Try These Angles! Exploring Angles
In this angles activity, students answer multiple choice questions about different types of angles in shapes. Students complete 10 questions.
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Interior Angles of Polygons
In this online math worksheet, students determine the interior angles of polygons given their exterior measurements. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
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Diagnostic Test: Angles & Parallel Lines
In this diagnostic test learning exercise, students solve problems involving angles, parallel lines, and perpendicular lines. They identify alternate interior angles, alternate exterior angles, and corresponding angles. Students find...
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Introducing Angles
Sixth graders identify, compare and interpret the characteristics of polygons and angles in order to meet spatial sense, geometry and measurement standards. They also sort shapes into three categories, polygons (regular and irregular)...
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Measuring Segments
In this measuring segments activity, 10th graders solve 12 different problems related to determining the measurements of various segments. First, they determine each missing measure given the information. Then, students find the value of...
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Try These Angles! Exploring Angles: Post Test
In this angles worksheet, students answer multiple choice questions about angles on their own and angles inside shapes. Students complete 10 multiple choice questions.
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Inching Our Way through Measurement
Students review how to use an inch ruler and listen to the story, Inch by Inch by Leo Lionni. In this measuring lesson, students work in small groups to create an Inch Poster. Students then use an inch ruler to measure different objects...
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Angles and Turns
In this angles worksheet, students solve 24 problems in which angles and measurements on a compass are calculated. There are also some map problems to solve. The page is intended for online use but can be done on paper.
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Quiz: Similarity
In this similarity worksheet, students use the characteristics of similar figures to determine the length of one side of a polygon, the height of a tree, or the shortest side of a triangle. They also identify similar figures. ...
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Exterior and Interior Angles of Triangles
Tenth graders explore the exterior and interior angles of triangles. They use a theorem in order to prove a theorem about all polygons. Students use the theorem and its applications to find the angles of different types of triangles.