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More Lessons for Grade 9 Math

Math Worksheets

Examples, videos, worksheets, games, and activities to help students learn the trigonometric functions: sine, cosine, tangent, secant, cosecant and cotangent. How to use Trigonometric Functions To Find Unknown Sides of Right Triangles?

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1

Example:

Consider the following triangle. If tan α = 2/7, what is the area of the triangle?

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 2

Example:

A 60ft ladder is leaning against a wall so that the top of the ladder makes 1 15° angle with the wall. How high up the wall does the ladder reach?
Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 3

Example:

Consider the triangle QRS given below. If c = 14, what is the value of b?

More Lessons for Grade 9 Math

Math Worksheets

Examples, videos, worksheets, games, and activities to help students learn the trigonometric functions: sine, cosine, tangent, secant, cosecant and cotangent. How to use Trigonometric Functions To Find Unknown Sides of Right Triangles?

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1

Example:

Consider the following triangle. If tan α = 2/7, what is the area of the triangle?

Example:

A 60ft ladder is leaning against a wall so that the top of the ladder makes 1 15° angle with the wall. How high up the wall does the ladder reach?

Example:

Consider the triangle QRS given below. If c = 14, what is the value of b?

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