Mathematics for IGCSE & O level - Limits Of Accuracy (Section 2 - No. 33)
The sides of a triangle are 7 cm, 8 cm and 10 cm. They are measured to the nearest centimetre. What is the smallest possible perimeter?
24 cm
24.0 cm
25 cm
25.0 cm
Explanation
Lower Bound = 6.5 + 7.5 + 9.5 = 23.5 (24 cm to the nearest cm)
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