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Mathematics for IGCSE & O level - Mensuration (Section 8 - No. 5)

A triangle has an area of 30cm². If the base is 10 cm, what is its height?
3 cm
6 cm
15 cm
40 cm

解释

Area = 0.5 * b * h => 30 = 0.5 * 10 * h => 30 = 5h => h = 6.

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