Question

calculate the perimeter of an equilateral triangle of side 7cm

Answer 1

Answer:

perimeter is 21

Step-by-step explanation:

An equilateral triangle has 3 equal sides. That means that if one side is 7 cm, the other two are also 7cm. 7×3=21. You can also do it by addition: 7+7+7=21

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Answer 2

Answer:

21 cm

Step-by-step explanation:

In equilateral triangle we know that all the sides are equal.

Given, length of each side = 7 cm

Number of sides = 3

So, perimeter = (7×3)cm

= 21 cm

Hope it helps.....

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