Question

What is the area of the actual square window shown in the scale drawing?

Answer 1

The area of the actual square window = 2.25 m².

Scale Drawing

Scale drawing relates the actual length of an object to its length on a paper.

Given a scale of 1 in = 2 m, it means 1 in on paper is about 2 m of the actual length of the object.

Thus:

• Length on scale drawing = 0.75 in
• Actual length = x

Therefore:

1/2 = 0.75/x

• Cross multiply

x = 1.5 m

Area of the actual square window = 1.5² = 2.25 m².

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