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Mathematics for IGCSE & O level - Mensuration (Section 5 - No. 27)

A triangle has a base of 12cm and a height of 7cm. What is the area?
42 cm²
84 cm²
19 cm²
28 cm²

解释

Area = 0.5 * base * height = 0.5 * 12 * 7 = 42

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