Question

Two side of a triangle are 17cm and 21cm .The perimeter of the triangle is 50cm.What is the measure of its third side.

Answer 1

first side= 17cm
second side= 21 cm
third side = ?
perimeter = 50cm
perimeter= sum of all sides.
50 = first side+ second side + third side
50= 17+21+ third side
50= 38+ third side
50-38= third side
12 = third side ..

SO ____ THIRD SIDE IS 12 CM


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