Question

Найдите площадь круга радиусом 5 см

Answer 1

Sкр=3.14 * 5 в квадрате

sкр=3.14*25

Sкр=78.5

Answer 2

S круга = П (число Пи) * r * r 
S круга = 3,14 * 5 * 5 = 78,5 см в квадрате.

Answer 3

I can help you with your math question. The area of a circle is given by the formula $$S = \pi r^2$$ where $S$ is the area, $\pi$ is a constant equal to about 3.14, and $r$ is the radius of the circle. If the radius is 5 cm, then we can plug it into the formula and get $$S = \pi \times 5^2$$ $$S = \pi \times 25$$ $$S = 25\pi$$ To get an approximate value, we can use 3.14 for $\pi$ and get $$S \approx 3.14 \times 25$$ $$S \approx 78.5$$ Therefore, the area of the circle is about 78.5 square centimeters. You can also check out some online calculators and explanations for finding the area of a circle [here](https://ru.onlinemschool.com/math/assistance/figures_area/circle/), [here](https://uchi.ru/otvety/questions/naydite-ploschad-kruga-radiusom-5-sm), or [here](https://uchi.ru/otvety/questions/vichislite-ploschad-kruga-radius-kotorogo-raven-5-santimetrov). I hope this helps.