Measurement of the bookcase on the scale drawing using the scale 3cm:2 feet is width =19.5 cm and height = 36 cm
What is Scaling?
Scaling an object means multiplying every linear dimension of it by the same factor
What is Unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given,
Width of the bookcase = 13 feet
Height of the bookcase = 24 feet
Given scale is 3cm : 2 feet
Therefore for 1 feet = 1.5 cm
Then,
Width of the bookcase = 13×1.5= 19.5 cm
Height of the bookcase = 24×1.5= 36 cm
Hence, the measurements of the bookcase after scaling is width =19.5 cm and height = 36 cm
Learn more about Scaling and Unitary method here
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