If the length of a rectangle is decreased by 6 cm and the width is increased by 3 cm, the result will be a square, the area of w
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The perimeter of a triangle is given by <em>the sum its three sides</em>, then according to the figure above we have that:
Thus, our goal is to find the value of
and by finding it we will get the perimeter of the triangle. If ∠I = ∠K = β, then according to the Law of Sines we have:
Lastly, the perimeter is:
Thus, our goal is to find the value of
Lastly, the perimeter is: