length of side of an equilateral triangle is 5 cm its perimeter is
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20 cm
perimeter of a square is four times its one side. As side of the square is 5 cm. Its perimeter is 5×4=20 cm
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Answer:
15 cm
Step-by-step explanation:
perimeter of triangle = 3×side
= 3×5
= 15cm
the perimeter of triangle is 15cm
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