The sides of a triangle are 5 cm, 6 cm and 7 cm, then its semi perimeter is :
6 cm
7 cm
8 cm
9 cm
Answers
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0
Answer:
9 cm
Step-by-step explanation:
Perimeter of triangle = sum of all side
=5+6+7 cm=18 cm
Semi perimeter=18/2
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