Question

in the right triangle shown, the length of $overline{ac}=4$ and the length of $overline{bc}=3$. what is the length of $overline{ab}$? choose 1 answer: a 5 b 7

Explanation:

Step1: Apply Pythagorean theorem

$AB^{2}=AC^{2}+BC^{2}$

Step2: Substitute values

$AB^{2}=4^{2}+3^{2}=16 + 9=25$

Step3: Solve for AB

$AB=\sqrt{25}=5$

Answer:

A. 5