Find the perimeter of an equilateral triangle, each of whose sides measure 9 cm :
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1
Answer:
3(9)= 27
Step-by-step explanation:
equilateral triangle has all equal sides
Answered by
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There are three sides in a triangle.
Perimeter of an equilateral triangle = 3a
a= length of each side
Perimeter = 3 × 9 = 27 cm
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