Solution
Step 1:
The formula of the area of a rectangle
[tex]Area\text{ of a rectangle = Length }\times\text{ Width}[/tex]Step 2:
Given data
Length = 15cm
width = 8cm
[tex]\begin{gathered} Area\text{ = 15 }\times\text{ 8} \\ Area\text{ = 120 cm}^2 \end{gathered}[/tex]Final answer
Area of a rectangle = 120