### We found188 reviewed resources for trigonometry ratios

Lesson Planet

#### Trigonometry Ratios in Right Triangles

For Students 10th
In this trigonometry ratios in right triangles worksheet, 10th graders solve 10 different trigonometric ratios that apply to right triangles. First, they define a trigonometric ratio and its three most common ratios, sine, cosine, and...
Lesson Planet

#### Trigonometry Ratios in Right Triangles

For Students 10th
In this trigonometry ratios in right triangles worksheet, 10th graders solve 6 different right triangle problems. First, they find the values of x and y in each triangle, rounding each to the nearest tenth. Then, students locate the...
Lesson Planet

#### Trigonometry

For Teachers 9th - 11th
Students identify the different ratios of a right triangle. In this trigonometry lesson plan, students calculate the sine, cosine and tangent of a right triangle. They differentiate between right and oblique triangles.
Lesson Planet

#### Introduction to Trigonometry

For Teachers 9th - 12th Standards
The topic of trigonometric ratios is often covered with loads of rote memorization baked into the activity. This activity set, however, leans more on using similar triangles and discovery learning to help young geometers develop a deeper...
Lesson Planet

#### Trigonometry

For Teachers 9th - 12th Standards
This trigonometry textbook takes the learner from a basic understanding of angles and triangles through the use of polar coordinates on the complex plane. Written by a mathematician-engineer, examples and problems here are used to...
1 In 1 Collection
EngageNY

#### Trigonometry and the Pythagorean Theorem

For Students 9th - 11th Standards
Ancient Egyptians sure knew their trigonometry! Pupils learn how the pyramid architects applied right triangle trigonometry. When comparing the Pythagorean theorem to the trigonometric ratios, they learn an important connection that...
1 In 1 Collection
Lesson Planet

For Teachers 9th - 12th Standards
A fabulous set of examples and problems that introduce basic trigonometry concepts, this packet is set apart by the care it takes to integrate both radians and degrees into the material. After defining radians, the author demonstrates...
1 In 1 Collection
EngageNY

#### Incredibly Useful Ratios

For Students 9th - 10th Standards
Start the exploration of trigonometry off right! Pupils build on their understanding of similarity in this instructional activity that introduces the three trigonometric ratios. They first learn to identify opposite and adjacent...
Lesson Planet

#### Trigonometry Ratios

For Teachers 9th - 12th Standards
Students identify the different angles and sides of a triangle. For this geometry lesson, students identify the six trigonometric ratios. They graph the graph of each trig function and analyze it.
Lesson Planet

#### Trig Ratios of General Angles

For Students 10th - 12th
In this trig ratios worksheet, students determine the angle measurement of trigonometric ratios. They find the value of trigonometric function. This approximately four-page worksheet contains 24 problems. Answers are provided on the last...
Lesson Planet

#### Special Right Triangles and Right Triangle Trigonometry

For Teachers 9th - 11th Standards
Right triangles are so special! Use special right triangles to discover the trigonometric ratios. Pairs construct special right triangles and find the values of the ratios of the sides. In the process, they discover the ratios stay the...
Lesson Planet

#### Trig Ratios

For Teachers 9th - 10th Standards
Students derive the six trigonometric ratios. In this trigonometry lesson, students use trigonometric properties to find the missing angles of triangles.
Lesson Planet

#### Area of Triangle Using Trigonometry

For Students 10th - 12th
For this trigonometry worksheet, students determine the area of triangles using the trigonometry ratios of sine, cosine, and tangent. This one-page worksheet contains ten problems.
Lesson Planet

#### The Cosine Ratio

For Students 9th - 12th Standards
Help your classes understand the relationship between trigonometric ratios and similarity. A set of questions ask scholars to consider the ratio of sides of similar figures. They conclude that all similar triangles must have the same...
6:34
Lesson Planet

#### Proof: Law of Sines

For Students 11th - Higher Ed
In this video, Sal proves the Law of Sines by using the SOH-CAH-TOA model and setting up equivalent ratios.
3:17
Lesson Planet

#### Trigonometry Introduction

For Students 10th - 12th Standards
Don't go off on a tangent. An instructive video describes how to find the sine, cosine, and tangent ratios of an angle in a right angle. It describes how to label the sides of a right triangle and how to use mnemonics to remember the...
Lesson Planet

#### Worksheet 6.6 Analysis: Trig Ratios

For Students 11th - Higher Ed
In this trig ratios instructional activity, students determine the exact value of given expressions. This one-page instructional activity contains 12 multi-step problems.
Lesson Planet

#### Exploration of Trigonometry

For Teachers 6th - 12th Standards
Learners explore how changing an angle in a triangle changes the ratio of the sides. They also explore how changing the sides can make changes to an angle in a triangle. Finally, they determine how two different pairs of sides, in the...
Lesson Planet

#### The Tangent Ratio

For Teachers 8th - 11th
Students calculate the tangent ratio given a right triangle. In this trigonometry lesson, students use a right triangle and the Pythagorean Theorem to solve problems.
Lesson Planet

#### Further Trigonometry

For Students 11th - 12th
In this trigonometry worksheet, students solve and complete 5 various types of problems. First, they find the exact ratios for each trigonometric function. Then, students use the expansion to find the exact value of a given trig...
Lesson Planet

#### Measuring Strings using Trig Ratios

For Teachers 4th - 9th
Students measure strings. In this trigonometry lesson, students use a protractor and scientific calculators to measure strings hanging from the ceiling. Students use trigonometric ratios.
Lesson Planet

#### Missing Angles

For Students 10th - 11th
In this missing angle worksheet, students use trigonometry ratios to determine the measurement of a missing angle. Students identify sine, cosine and tangent ratios. This one-page worksheet contains ten problems.
Lesson Planet

#### Ratios in Right Triangles

For Teachers 9th - 12th Standards
Learners calculate the sides of right triangles in this trigonometric ratios lesson. They use Cabri Jr. software and TI-83 or TI-84 calculators to find the side lengths and their ratios to each other for various triangles. The provided...
Lesson Planet

#### Review of Trig Ratios

For Students 11th - Higher Ed
In this trigonometric ratios worksheet, students solve and complete 10 various types of problems. First, they write the degrees listed in radian measure. Then, students find the exact ratios for each equation. They also find the value of...