Question

R круга =2см ,S-?..​

Answer 1

Ответ:

$4\pi$

Объяснение:

По формуле площади круга, S=πR^2=π(2^2)=4π.

Answer 2

It seems like you're asking about the area of a circle with a radius of 2 cm. The formula for calculating the area (S) of a circle is:

$S = \pi r^2$

Where:

• $S$ is the area of the circle.
• $\pi$ is a mathematical constant approximately equal to 3.14159.
• $r$ is the radius of the circle.

Given that the radius ($r$) of the circle is 2 cm, we can plug this value into the formula:

$S = \pi \times (2 \, \text{cm})^2$ $S = \pi \times 4 \, \text{cm}^2$ $S \approx 12.56637 \, \text{cm}^2$

So, the approximate area of the circle with a radius of 2 cm is $12.56637 \, \text{cm}^2$.