The sides of a triangle are in the ratio 3 : 4 : 5. If the perimeter of the triangle is 84 cm, then area of the triangle is
1 point
294 cm2
290 cm2
274 cm2
252 cm2
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Perimeter = 84 cm. As perimeter of a triangle is the sum of all sides. 3x+4x+5x= 84cm. 12x= 84cm.
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