Answer:
Step-by-step explanation:
Scale factor= 1:20
x be the length in feet
1:20 = 5:x
[tex]\frac{1}{20}=\frac{5}{x}\\\\1*x=5*20\\\\[/tex]
x = 100 ft
y be the width in feet
1 : 20 = 4 : y
[tex]\frac{1}{20}=\frac{4}{x}\\\\1*x=4*20\\[/tex]
x = 80 ft
Area = Length * width = 100 * 80 = 8000 square ft
