Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 5 - No. 3)
If you have a right triangle with a hypotenuse of length 10 and one leg of length 6, what is the length of the other leg?
4
8
16
64
説明
Using the Pythagorean theorem, 6^2 + x^2 = 10^2, 36 + x^2 = 100, x^2 = 64, x = 8