Sectieoverzicht
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You can use the Theorem of Pythagoras to find the lengths of missing sides if you know that a triangle is right-angled. The theorem of Pythagoras has many applications in Trigonometry.
In the next video you will see a worked example to calculate the length of an unknown side in a right-angled triangle. This example will help you complete the activity in the video. When you have completed the video try the activity that follows.
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Activity: Find the unknown lengths
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