Mathematics, 27.11.2021 19:10 xoxzyanya61

The sides of an equilateral triangle are (a + 2b), (a + 2b + 1) and (2a − b), then what is the area of triangle? I want step-by-step explanation. No spamming at all.
Thank you in anticipation.

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The sides of an equilateral triangle are (a + 2b), (a + 2b + 1) and (2a − b), then what is the area...