Given that length of side of an equilateral triangle is 3.4 cm . Find its perimeter ? [3 MARKS]

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Solution

In an equilateral triangle all the sides are equal .

Let the side of an equilateral triangle be= a cm where a= 3.4 cm ( given)

Now Perimeter = a+ a+a=(3a) cm

= (3)*(3.4)

=10.2 cm
Hence perimeter of the equilateral triangle = 10.2 cm.

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