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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
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
Lesson
Practice
PYTHAG - Review (calculations and applications)
Pythagoras in 3D
Trigonometric Ratios with Exact Values
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Hong Kong
Stage 1 - Stage 3

PYTHAG - Applications using Pythagoras

Lesson
Practice

Interactive practice questions

Iain’s car has run out of petrol. He walks $12$12 km west and then $9$9 km south looking for a petrol station.

If he is now $h$h km directly from his starting point, find the value of $h$h.

Easy
Approx a minute

Consider the following figure.

Consider the following trapezium.

Consider the following diagram.

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