Chris correctly measured the length of a line segment and rounded his answer to the
nearest centimetre. If the rounded measurement is 6 cm, what would the most accurate
statement about the actual measure of the line segment be?
Answers
Given : Chris correctly measured the length of a line segment and rounded his answer to the nearest centimetre.
the rounded measurement is 6 cm
To Find : what would the most accurate statement about the actual measure of the line segment be
A. Between 500 mm and 700 mm
B. Between 550 mm and 650 mm
C. Between 5.0 cm and 6.0 cm
D. Between 5.4 cm and 6.5 cm
Solution :
Between 500 mm and 700 mm - INCORRECT
501 mm will be rounded to 5 cm
699 mm will be rounded to 7 cm
Between 550 mm and 650 mm - CORRECT
All will be rounded to 600 mm or 6 cm
Between 5.0 cm and 6.0 cm INCORRECT
5.1 cm will be rounded to 5 cm
Between 5.4 cm and 6.5 cm INCORRECT
5.41 cm will be rounded to 5 cm
Hence correct answer is Between 550 mm and 650 mm
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