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Trigonometry
PYTHAG - The Right-Angled Triangle
PYTHAG - Pythagorean Triads
PYTHAG - Calculating Side Lengths Using Pythagoras
Sides of a Right-Angled Triangle
Ratio of Sides in Right-Angled Triangles
Trigonometric Ratios I
Trigonometric Ratios II
Lesson
Practice
Calculating Trigonometric Expressions
Finding Unknown Side Lengths Using Trig Ratios
Finding Unknown Angles
Triangle Problems
Applications to Geometry
Angles of Elevation and Depression
Problems with Two Right-Angled Triangles
Applications to Real Life I
Applications to Real Life II
Trigonometry in 3D
Applications Including Bearings
Exact trigonometric values in first quadrant
Solve trigonometric equations with exact values
Complementary results
PYTHAG - Applications using Pythagoras
PYTHAG - Review (calculations and applications)
Pythagoras in 3D
Trigonometric Ratios with Exact Values
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Hong Kong
Stage 1 - Stage 3

Trigonometric Ratios II

Lesson
Practice

Interactive practice questions

Write down the ratio represented by $\cos\theta$cosθ.

Easy
Less than a minute

Write down the ratio represented by $\tan\theta$tanθ.

Write down the ratio represented by $\sin\theta$sinθ.

Consider the following figure.

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