Calculate the area of a triangle if all sides are 5 cm.
| February 1, 2021 | education
If a triangle has all sides equal, then it is called equilateral.
The area of an equilateral triangle can be found by the formula:
S = a² * √3 ÷ 4, where a is the side of the triangle. Let’s calculate the area of a triangle with a side of 5 cm and round the result to hundredths.
S = (5 cm) ² * √3 ÷ 4 = 10.83 cm².
Answer: 10.83 cm².
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