In a triangle ABC, if a = 2, bc = 9, then the value of 2R is

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In a triangle ABC, if a = 2, bc = 9, then the value of 2R $\Delta$
is

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2R\Delta = \frac{2.abc}{4\Delta} \cdot \Delta = \frac{(2)(9)}{2} = 9

Source: Grass-G / M-24 Mathematics Paper 31 Dec.docx

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