Question

if ab = 20 and bc = 31, find ac.
a b c
20 31
ac = ?

Explanation:

Step1: Analyze the line segments

From the figure, \(AC = AB+BC\).

Step2: Substitute the given values

Given \(AB = 20\) and \(BC = 31\), then \(AC=20 + 31\).

Step3: Calculate the sum

\(20+31=51\).

Answer:

51