the perimeter of a triangle is 60 square - 4 P + 9 and two of its side r p square - 2 + 1 and 3 square minus 5 + 3 find the third side of the triangle
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area of the triangle = 1/2 X base x height
216 cm2 = 1/2 x 24 x height
height = 216/12 = 18 cm
216 cm2 = 1/2 x 24 x height
height = 216/12 = 18 cm
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