Find the perimeter of the triangle whose area is 36 cm2 and one of its sides is 9m.
| March 28, 2021 | education
The area of the rectangle is found by the formula S = a * b, and the perimeter P = 2 (a + b).
We know one side, and we find the other from the area formula.
36 = a * 9
Finding the unknown side
a = 4
We substitute the values of the sides into the perimeter formula, the perimeter is P = (9 + 4) * 2 = 26 cm
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