Find the area of a circle if its radius is 2.6 cm.
| March 31, 2021 | education
The area of a circle (Sk) with a radius of R = 2.6 cm can be found knowing the formula:
Sk = πR²
where: π (pi) is a mathematical constant, π = 3.14;
R² is the radius of the circle squared (multiplied by itself).
Sk = 3.14 ∙ 2.62 = 3.14 ∙ 2.6 ∙ 2.6 = 21.2264 cm².
If necessary, it can be rounded to the nearest hundredth:
Sk = 21.23 cm².
Answer: the area of the circle is 21.23 cm².
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