Question

1. if ab = 20 and ac = 30, then find the value for bc. be sure to include your work. (2 pts)

Explanation:

Step1: Identify segment - relationship

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

Step2: Solve for $BC$

We can rewrite the formula as $BC=AC - AB$. Given $AB = 20$ and $AC = 30$, then $BC=30 - 20$.

Answer:

$10$