7(b) Range of Door Height

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10/23/2025

Problem

Desmond measures the height of a door as 200 cm with a percentage error of 0.5%. Find the range of the actual height of the door.

Solution

199 cm to 201 cm

Absolute error = 1 \\text{ cm}. Range = 200 - 1 \\text{ to } 200 + 1 = 199 \\text{ cm to } 201 \\text{ cm}.

measurement

range