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Worksheet
Curated OER

Number of Solutions for a Triangle

For Students 11th - Higher Ed
In this solutions for a triangle worksheet, students use trigonometric ratios to determine the number of triangles that can be constructed with the given sides and angles. This one-page worksheet contains 22 problems.
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Worksheet
Curated OER

Range of Trigonometric Functions

For Students 11th - 12th
In this trigonometry instructional activity, students find the range of each trigonometric function using the derivative. There are 3 questions with an answer key.
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Lesson Plan
Curated OER

Solve Right Triangle

For Teachers 9th - 11th
For this trigonometric applications worksheet, students solve for the missing side of a right triangle using a trigonometric ratio. There are 46 questions, 10 of which are word problems.
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Worksheet
Curated OER

Precalculus Test Sections 5.1 - 5.2

For Students 10th - 12th
In this section worksheet, students simplify given addition and division problems containing ratios with sine, cosine, and tangent.  They factor problems and prove identities.  This two-page worksheet contains 12 problems.
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Activity
Curated OER

Task: Range of Motion

For Teachers 7th - 10th Standards
If you have ever injured your shoulder, you know it takes a while to improve your arm's range of motion. For this real-world example, young mathematicians gain insight into the world of physical therapy while they analyze a case study...
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Activity
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Curated OER

Access Ramp

For Teachers 9th - 12th Standards
Just about every public building that your students are familiar with has an access ramp which complies with ADA requirements. As it turns out, designing such a ramp is an excellent activity to incorporate slope, the Pythagorean Theorem,...
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Worksheet
Curated OER

Trigonometry

For Students 10th - 12th
In this right triangles worksheet, students use trigonometric ratios to determine the length of a side of a triangle or a missing angle measurement.  This two-page worksheet contains 20 problems.
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Lesson Plan
Illustrative Mathematics

Two Wheels and a Belt

For Teachers 9th - 10th Standards
Geometry gets an engineering treatment in an exercise involving a belt wrapped around two wheels of different dimensions. Along with the wheels, this belt problem connects concepts of right triangles, tangent lines, arc length, and...
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Worksheet
Curated OER

Using Trinonometry to Find Angle Measures

For Students 10th - 12th
In this trigonometric ratios worksheet, students find the missing angle of 20 triangles by using sine, cosine and tangent ratios. Students compute the angle measurement of given ratios for six problems.
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Worksheet
Curated OER

Right Triangle Trigonometry: Finding Missing Sides and Angles

For Students 9th - 11th
In this right triangle trigonometry instructional activity, learners find the measure of specified angles. Students determine the length of the missing side of a right triangle. This four-page instructional activity contains 24 problems....
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Worksheet
Curated OER

Interior and Exterior Angles of Polygons

For Students 10th
In this angles of polygons worksheet, 10th graders solve and complete 18 different problems that include determining various interior and exterior angles. First, they determine the measure of various angles described in the first half of...
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Interactive
Curated OER

Tangents

For Students 10th - 12th
For this tangents worksheet, students use tangent ratios to find the length of the sides of right triangles. This one-page worksheet contains 10 multi-step problems.  Answers are provided.
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Lesson Plan
Mathematics Assessment Project

Solving Problems with Circles and Triangles

For Teachers 9th - 12th Standards
After completing a task involving examining the ratio of areas of triangles and circles in a given figure, scholars examine sample responses to identify other strategies they could use to solve the problem.
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Lesson Plan
Curated OER

Trigonometric Ratios

For Teachers 9th - 12th Standards
Learners investigate properties of the unit circle using sine, cosine and tangent. They analyze the answers to questions about the unit circle based on a right triangle.
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Worksheet
Curated OER

Trigonometric Ratios

For Students 10th
In this geometry worksheet, 10th graders use right triangle trigonometry to find the missing angle measure or side length.  The three page worksheet contains a combination of twelve multiple choice and free response problems.  Answers...
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Lesson Plan
Curated OER

Investigating Trigonometric Ratios Through Similar Right Triangles.

For Teachers 8th - 10th
49Students investigate the properties of right triangles. In this geometry lesson, students differentiate between similar and congruent triangles. They use the Pythagorean Theorem to find the missing angles and sides.
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Organizer
Curated OER

Year 10 Trigonometry

For Students 11th - Higher Ed
In this math worksheet, students complete the graphic organizers while filling in the missing values by using the trigonometric ratios.
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Lesson Plan
Curated OER

Sin, Cos and Tangent

For Teachers 9th - 10th
Students find the identity o sine, cosine and tangent. In this precalculus lesson, students solve and identify the different parts of a right triangle. They use the ratios of the Pythagorean Theorem to find the missing side or angle.
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Lesson Plan
Curated OER

The Laws of Sines and Cosines Made Simple!

For Teachers 10th - 12th
Young scholars study the law of sine and cosine. In this pre-calculus activity, students create a triangle and identify the different ratios of a non-right triangle. They use the properties of sine and cosine to solve.
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Lesson Plan
Curated OER

Investigating the Idea of Sin

For Teachers 5th
Fifth graders use sin to solve problems involving right-angled triangles, Solve equations of the form sin(++) = a, for a between -180++ and 360++. They State and graph the value of sin(++) in special cases. They describe some of the ways...
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Worksheet
Curated OER

Numerical Practice with Big Circles

For Students 10th - 11th
In this numerical practice activity, students determine the measurement of given angles. Using trigonometry ratios, they find the measurement of ten angles on this one-page activity.
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Worksheet
Curated OER

Tangent

For Students 10th
In this tangent worksheet, 10th graders solve 10 different problems that include various tangent lines. They find the value of x using the tangent of each given angle of various triangles illustrated. Then, students identify and define...
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Worksheet
Curated OER

Area of Triangle Using Trigonometry

For Students 10th - 12th
In this trigonometry learning exercise, learners determine the area of triangles using the trigonometry ratios of sine, cosine, and tangent. This one-page learning exercise contains ten problems.
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Worksheet
Curated OER

Tangent of a Point

For Students 10th - 11th
In this tangent worksheet, students find the tangent of one point when given the length of the sides of a triangle. This one-page worksheet contains ten problems.