Lacey measured a community college and made a scale drawing. She used the scale 3 millimeters : 2 meters. A building at the college is 206 meters long in real life. How long is the building in the drawing?

millimeters

To find the length of the building in the drawing, we can set up a proportion:

3 millimeters = 2 meters

Let x be the length of the building in the drawing.

So, we have the equation:

3 millimeters/2 meters = x millimeters/206 meters

Solving for x by cross-multiplying, we get:

2 * x = 3 * 206

2x = 618

Dividing both sides by 2, we get:

x = 309

Therefore, the length of the building in the drawing is 309 millimeters.