Question

41.Радиус основания цилиндра равен 2м, высота 3м. Найдите площадь осевого сечения.

Answer 1

(по теореме пифагора).ответ: 5 м.

Answer 2

Calculation of the Area of the Cross-Section of a Cylinder

To find the area of the cross-section of a cylinder, we need to know the radius of the base and the height of the cylinder. In this case, the radius of the base is given as 2 meters and the height is given as 3 meters.

The formula to calculate the area of the cross-section of a cylinder is:

Area of Cross-Section = π * r^2

where π is a mathematical constant approximately equal to 3.14159 and r is the radius of the base.

Let's substitute the given values into the formula:

Area of Cross-Section = π * (2^2)

Calculating the value:

Area of Cross-Section = π * 4

Now, let's calculate the approximate value of the area using the value of π:

Area of Cross-Section ≈ 3.14159 * 4

Calculating the value:

Area of Cross-Section ≈ 12.56636 square meters

Therefore, the approximate area of the cross-section of the cylinder is 12.56636 square meters.

Please note that the value of π has been approximated for simplicity.