QUESTION IMAGE
Question
find the scale for the new scale drawing.
| scale | width | length | area |
|---|---|---|---|
| 1 cm = m | 6 cm | 8 cm | 48 cm² |
Step1: Set up proportion for width
Let the unknown scale factor be $x$. We set up the proportion for the width: $\frac{1}{x}=\frac{6}{30}$.
Step2: Solve proportion for width
Cross - multiply: $6x = 30$. Then $x=\frac{30}{6}=5$.
We can also check with the length. Set up the proportion for the length: $\frac{1}{x}=\frac{8}{40}$. Cross - multiply: $8x = 40$, and $x = 5$.
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