Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 16)
Which of the following methods can be used to find the unknown sides?
Pythagorean theorem
The Ratio of sides
Trigonometric ratio
All of the above
Explanation
By knowing angles, the sides can be found by using trigonometric ratios, while the Pythagorean theorem can be used knowing the lengths of two sides.
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