The side of an equilateral triangle is 4 cm. Find its perimeter.
| July 17, 2021 | education
Let’s write the formula for the perimeter of an equilateral triangle
The perimeter is denoted by the letter P. The formula for the perimeter of an equilateral triangle is as follows:
P = a + a + a = 3 a,
where a is the lateral side of an equilateral triangle.
Calculate the perimeter of an equilateral triangle with a side of 4 cm
P = 3 × 4 = 12 cm.
Answer: The perimeter of an equilateral triangle is 12 cm.
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