Question

Площадь боковой поверхности цилиндра 15 (пи).Найдите площадь осевого сечения

Answer 1

осевое сечение- прямоугольник с сторонами 2r и h

(что неясно-пиши в личку)

Answer 2

Calculating the Area of the Lateral Surface of a Cylinder

To find the area of the lateral surface of a cylinder, we can use the formula: A = 2 * π * r * h, where r is the radius of the base and h is the height of the cylinder.

Given that the lateral surface area of the cylinder is 15π, we can use the formula to find the radius and height of the cylinder.

Using the formula A = 2 * π * r * h, we can rearrange it to solve for h: h = A / (2 * π * r)

Now, let's calculate the height of the cylinder using the given lateral surface area of 15π.

Calculating the Area of the Axial Section of the Cylinder

The area of the axial section of a cylinder can be calculated using the formula: A = π * r^2, where r is the radius of the cylinder.

Given that we have found the radius and height of the cylinder, we can now calculate the area of the axial section.

Conclusion

By using the provided information and the formulas for the lateral surface area and axial section area of a cylinder, we can calculate the required values.