Answer: The perimeter is 30 inches.
Step-by-step explanation:
By definition the sides of an Equilateral triangle are all equal. This means that:
[tex]EB=BA=AE[/tex]
The lengths of all the sides of a square are all equal, which means that:
[tex]BC=CD=DE=EB[/tex]
Since the lenght of the side CD is 6 inches, you can say that the lenght of each side of the compose figure is 6 inches. Then:
[tex]BC=CD=DE=EB=BA=AE=6\ inches[/tex]
Therefore, in you can determimne that the perimeter of ABCDE is:
[tex]P=BC+CD+DE+AE+BA=\\\\P=6\ in+6\ in+6\ in+6\ in+6\ in\\\\P=30\ in[/tex]