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Scale 1:30

If the scale is 1:30 this means that:
The actual measurements are 30 times bigger than the measurements on the picture.

So:
Length on plan = 18cm
Actual length = 18cm x 30 = 540cm

Answer :

When we talk about scale in drawings or models, we are referring to a ratio that defines how much the representation (like a drawing or a map) is reduced from its actual size. In this case, the scale is 1:30, which means that 1 unit on the plan (or drawing) equals 30 units in real life.

Explanation:

  1. Understanding the Scale 1:30:

    • The scale 1:30 suggests that every 1 unit on the plan corresponds to 30 units in the actual size. This is a common way to represent things that are too large to be displayed at their full size, such as buildings or land areas.

  2. Calculation Example:

    • Given: Length on the plan = 18 cm.
    • To find the actual length, multiply the plan length by the scale factor.
    • Formula: [tex]\text{Actual Length} = \text{Length on plan} \times \text{Scale factor}[/tex]
    • Calculation: [tex]\text{Actual Length} = 18 \text{ cm} \times 30 = 540 \text{ cm}[/tex]

  3. Conclusion:

    • The actual length of the object, as depicted on the plan, is 540 cm. This illustrates how scaling allows us to transform measurements from a drawing to real-world dimensions.

This concept of scale is fundamental in fields like architecture, engineering, and cartography because it allows for convenient and practical representation of large objects and distances on smaller, more manageable scales.

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Rewritten by : Barada