Question

record the scale - drawing dimensions for the following scales. scale: 1 cm = 2 m, scale: 1 cm = 10 m, scale width length 1 m = 1 m 30 m 40 m 1 cm = 2 m cm cm 1 cm = 10 m cm cm

Explanation:

Step1: For scale 1 cm = 2 m, find width

Given actual width is 30 m. Use proportion $\frac{1\ cm}{2\ m}=\frac{x\ cm}{30\ m}$, so $x = \frac{30}{2}=15$.

Step2: For scale 1 cm = 2 m, find length

Given actual length is 40 m. Use proportion $\frac{1\ cm}{2\ m}=\frac{y\ cm}{40\ m}$, so $y=\frac{40}{2} = 20$.

Step3: For scale 1 cm = 10 m, find width

Given actual width is 30 m. Use proportion $\frac{1\ cm}{10\ m}=\frac{a\ cm}{30\ m}$, so $a=\frac{30}{10}=3$.

Step4: For scale 1 cm = 10 m, find length

Given actual length is 40 m. Use proportion $\frac{1\ cm}{10\ m}=\frac{b\ cm}{40\ m}$, so $b = \frac{40}{10}=4$.

Answer:

scale	width	length
1 cm = 10 m	3 cm	4 cm