Answer:
20
Step-by-step explanation:
Formula:
[tex]A = x * y[/tex]
[tex]A - area, \: x - horizontal side, \: y - vertical side[/tex]
The given information
[tex]x = 5, \: y = 4[/tex]
Solution:
[tex]A = x * y = 5 * 4 = 20[/tex]
