Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 4 - No. 37)
If the hypotenuse of a right triangle is 13 and one leg is 5, what is the length of the other leg?
8
12
18
60
Explanation
Use Pythagorean theorem: sqrt(13^2 - 5^2) = 12
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