Two sides of a triangle are 14cm and 15cm. The perimeter of the triangle is 39cm. What is the third side
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Answer:
Let the third side of the triangle be x.
Since,
sum of all angles of a triangle = permeiter
Therefore,
14 cm + 15 cm + x = 39 cm
29 cm + x = 39 cm
x = (39 - 29) cm
x = 10 cm
So, the third side of the triangle is 10 cm
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