Question

A legend reads 1cm:15cm. If the scale drawing shows a ball that is 10cm in diameter, then what is the diameter of the ball in real life?

Answer 1

The diameter of the ball in real life given the scale of the drawing is 150cm.

What is the scale of the drawing?

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

Scale of the drawing = original dimensions / dimensions of the scale drawing

10cm x 15 cm - 150cm

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