Mathematics for IGCSE & O level - Limits Of Accuracy (Section 3 - No. 20)
The area of a rectangle is found to be 30 cm² when measurements are rounded to the nearest cm. What would the possible area be?
29.5 cm² - 30.5 cm²
29.5 cm² - 30.5 cm²
29.0 cm² - 31.0 cm²
29.5 cm² - 30.0 cm²
Explanation
If the measurement is 30 to the nearest cm, it's to 29.5cm to 30.5cm.
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