Question

if ac = 63 and bc = 45, find ab.
ab =
if b is between a and c, then ab + bc = ac.

Explanation:

Step1: Substitute values into the formula

Given \(AB + BC=AC\), substitute \(AC = 63\) and \(BC = 45\) into the formula: \(AB+45 = 63\).

Step2: Solve for \(AB\)

Subtract 45 from both sides of the equation: \(AB=63 - 45\).
Calculate \(63-45\): \(AB = 18\).

Answer:

\(18\)