The sides of a right angle triangle in ascending order of magnitude are 8cm, (x-2)cm and x cm. Find x
- 16
-
17
- 34
- 90
The correct answer is: B
Explanation
\(8^2 + (x - 2)^2 = x^2\\64 + x^2 - 4x + 4 = x^{2}\\
x^2 - 4x + 68 = x^2\\
-4x = -68\\
-x = \frac{-68}{4} = 17\)