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Lesson Plan
Curated OER

The Law of Sines and the Law of Cosines

For Teachers Higher Ed
In this college level trigonometry worksheet, students apply the Law of Sines and the Law of Cosines to solve triangles. The four page worksheet contains forty-four problems. Solutions are not provided. 
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Lesson Plan
Curated OER

Law of Sines

For Teachers 10th - 12th
In this Law of Sines worksheet, students describe, in their own words, when to use the law of sines. They give an example of a problem using the law of sines. This two-page worksheet contains one problem and a sample answer.
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Lesson Plan
Curated OER

Introduction to Law of Sines

For Teachers 10th - 12th
Students solve problems using the law of sines.  In this sines activity, students work in groups and individually to solve problems using the law of sines.  They identify real life problems that require the use of the law of sines.  Real...
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Lesson Plan
Curated OER

Algebra 2 & Trigonometry Practice: Law of Sines

For Teachers 9th - 12th
In this law of sines worksheet, high schoolers solve 9 multiple choice and short answer problems.  Students use the law of sines to missing side lengths and angles of triangles.
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Worksheet
Curated OER

Section 6.1-6.2 Precalculus: Trigonometry

For Students 9th - 12th
In this trigonometry instructional activity, students solve 15 triangle problems.  Students use the law of sines and law of cosines to find the missing angles and side lengths of a triangles.
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Lesson Plan
Curated OER

Concepts in Precalculus 1: Trigonometry

For Teachers 11th - 12th
Learners investigate trigonometry.  In this Algebra II/Pre-calculus/Trigonometry lesson, students explore Islamic achievements in mathematics as they calculate angles and distances using the Law of Sines and the Law of Cosines. ...
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Worksheet
Curated OER

Law of Sines

For Students 10th
In this Law of sines worksheet, 10th graders solve 10 different sets of problems related to the Law of Sine and Ambiguous case. First, they determine the ratio of the sides of the triangle with the given measurements. Then, students...
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Interactive
Curated OER

Ten Law of Sines Problems

For Students 8th - 10th
In this law of sines learning exercise, learners use the law of sines to solve for the missing side or angle in ten problems.  A diagram is provided.
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Interactive
Curated OER

Law of Sines or Sine Rule

For Students 9th - 12th
In this online math worksheet, high schoolers construct triangles and squares by utilizing the sine rule. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A...
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Worksheet
Curated OER

Law of Sines and Law of Cosines

For Students 11th - 12th
In this Pre-calculus/Trigonometry instructional activity, students use the laws of sines and cosines to solve triangles. The four page instructional activity contains thirteen problems. Answers are not included.
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Lesson Plan
Curated OER

Law of Sines

For Teachers 9th - 12th
Students identify the ratios of a right triangle. In this calculus lesson plan, students use the law of sines to solve problems involving non-right triangles. They identify the different parts of a triangle.
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Lesson Plan
Curated OER

Law of Sines Word Problems

For Teachers 11th - 12th
Students solve word problems using the law of sines. In this precalculus lesson, students work in groups as they define vocabulary terms. They apply the formula of sine to answer and solve problems.
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Lesson Plan
Curated OER

The Laws of Sines and Cosines Made Simple!

For Teachers 10th - 12th
Students explore the concept of law of sines and cosines. In this law of sines and cosines lesson, students construct a triangle tool from card stock and markers. Students use their triangle tool to aid in solving problems involving...
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Worksheet
Curated OER

Trigonometry Worksheet

For Students 10th - 12th
In this trigonometry worksheet, students use the law of sines to find the length of a missing side of a triangle. They prove trigonometric identity and use Heron's formula to find the area of a triangle. This two-page worksheet...
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Worksheet
Curated OER

Algebra and Trigonometry - Week 3: Story Problems

For Students 11th - Higher Ed
In this story problem worksheet, students read story problems, write equations, and solve. They use the law of sines, the law of cosines, the distance formula, and rates to solve problems. This two-page worksheet contains seven story...
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Worksheet
Curated OER

Identity Worksheet

For Students 11th - Higher Ed
In this identity worksheet students use trigonometric functions to prove given statements are true. This one-page worksheet contains fifteen problems.
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Lesson Plan
Curated OER

Algebra And Trigonometry - Week 3: Law of Sines

For Teachers 12th - Higher Ed
In this law of sines worksheet, students read story problems. They use both algebra and the law of sines and cosines to solve problems. This two page worksheet contains seven problems.
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Lesson Plan
Curated OER

Trigonometry Involving Figures - Week 11

For Teachers 10th - 11th
In this trigonometry worksheet, students use trigonometric functions to determine the measurement of angles and the length of sides in given figures. Most figures are comprised of rectangles containing parallel and perpendicular lines,...
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Lesson Plan
Curated OER

River Width

For Teachers 6th - 8th
Middle schoolers determine the level of accuracy needed for computations involving measurements and irrational numbers. They use the correct number of digits in computation to achieve an appropriate unit or level of accuracy when...
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Lesson Plan
Curated OER

The Distance to an Unapproachable Point

For Teachers 8th - 11th
Pupils use geometry or trigonometry to measure the distance of a far off point. They verify their measurements using a tape measure to check their work.