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what is the perimeter of a triangle whose sides are 3ײ - 7 cm, 2ײ - 2 cm and 5ײ + 7 cm

Sagot :

Answer:

P=a+b+c

(3ײ - 7) + (2ײ - 2) + (5ײ + 7)

(3ײ + 5ײ + 2ײ )+( 7 - 7 - 2)

P=10ײ - 2 cm