To find the scale, we need to compare the drawing length to the actual length.
First, let's convert the drawing length to the same unit as the actual length. The drawing length is given as 18 cm, and the actual length is given as 450 m. Since 1 meter is equal to 100 centimeters, we can convert 450 m to centimeters by multiplying it by 100:
450 m * 100 cm/m = 45,000 cm
Now, we can compare the drawing length to the actual length:
Drawing length: 18 cm
Actual length: 45,000 cm
To find the scale, we divide the drawing length by the actual length:
Scale = Drawing length / Actual length
Scale = 18 cm / 45,000 cm
Simplifying the division, we get:
Scale = 1/2500
So, the scale is 1/2500.
This means that every 1 cm on the drawing represents 2500 cm in real life. For example, if you measure a line on the drawing that is 2 cm long, it would represent 5000 cm (or 50 meters) in real life!