Question

if ac = 25 and bc = 12, find ab.

Explanation:

Step1: Identify the relationship

From the figure, we know that $AC=AB + BC$.

Step2: Solve for AB

We can rewrite the equation as $AB=AC - BC$. Substitute $AC = 25$ and $BC = 12$ into the equation. So, $AB=25 - 12$.

Step3: Calculate the result

$AB = 13$.

Answer:

$13$