Question

trisha made a scale drawing of a house. the scale of the drawing is 1 millimeter : 3 meters. in the drawing, the garage is 2 millimeters long. what is the actual length of the garage? meters

Explanation:

Step1: Set up scale - ratio

The scale is 1 millimeter : 3 meters. Let the actual length of the garage be $x$ meters. We know the length on the drawing is 2 millimeters. The ratio of the drawing length to the actual length is constant. So we have the proportion $\frac{1}{3}=\frac{2}{x}$.

Step2: Cross - multiply

Cross - multiplying the proportion $\frac{1}{3}=\frac{2}{x}$ gives us $1\times x = 2\times3$.

Step3: Solve for $x$

$x = 6$ meters.

Answer:

6