Mathematics, 19.12.2019 21:31 Reijected

X=3 what is the area of a triangle with sides, 6x ,7x, and 21x? a.117 in² b.378 in² c.189 in² d. 58.5 in²

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X=3 what is the area of a triangle with sides, 6x ,7x, and 21x? a.117 in² b.378 in² c.189 in² d. 58...