two sides of a triangle are 12 cm and 20 cm the perimeter of a triangle is 48 cm what is the third side?¿??
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1
Step-by-step explanation:
the length of the third side of a triangle is 16 cm
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14
perimeter of triangle = side + side + side
48 = 12+20+ side
48= 32+ side
48-32= side
side = 16 cm
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