Answer:
The dimensions of the fort in the drawing is 7 in by 5.5 in
Step-by-step explanation:
A scale can be used to either increase or decrease the size of a given object.
From the question, Brennan used a scale of 3 feet to 1 inch.
scale = [tex]\frac{actual fort}{scale drawing}[/tex]
The dimensions of the fort are 21 ft by 16.5 ft. Thus, to determine the dimensions of the drawing;
[tex]\frac{3 ft}{1 in}[/tex] = [tex]\frac{21 ft}{y}[/tex]
y = [tex]\frac{21 ft *1 in}{3 ft}[/tex]
= 7 in
Also,
[tex]\frac{3 ft}{1 in}[/tex] = [tex]\frac{16.5 ft}{z}[/tex]
z = [tex]\frac{16.5 ft*1 in}{3 ft}[/tex]
= 5.5 in
Dimensions = y by z = 7 in by 5.5 in
Therefore, the dimensions of the fort in the drawing is 7 in by 5.5 in.