Answer:
Step-by-step explanation:
8 ft by 4 ft
8ft x 4ft = 32 ft
8ft + 8 ft = 16 ft 4 ft + 4 ft = 8 ft
16ft + 8 ft = 24 ft
The amount of degrees in a polygon: 360
In a pentagon: 360 / 5 = 72
9x - 18 = 72 Add 18 to both sides
9x = 90 Divide by 9
x = 10
