Question

Дан прямой круговой цилиндр с образующей 5,5см и радиусом основания 2см 1)нарисуйте развертку данного цилиндра 2)найдите площадь полной поверхности цилиндра 3)найдите объем цилиндра

Answer 1

Ответ:

⊕ и измерь 4 стороны и все получится

Объяснение:

Answer 2

Drawing the Unfolded Cylinder

To draw the unfolded cylinder, we need to visualize the net of the cylinder. The net of a cylinder consists of three parts: two circles (the top and bottom of the cylinder) and a rectangle (the lateral surface of the cylinder). The rectangle's length is the same as the circumference of the base of the cylinder, and its height is the same as the height of the cylinder.

Finding the Total Surface Area of the Cylinder

The total surface area of a cylinder can be calculated using the formula: Total Surface Area = 2πr(h + r), where r is the radius of the base and h is the height of the cylinder.

Finding the Volume of the Cylinder

The volume of a cylinder can be calculated using the formula: Volume = πr^2h, where r is the radius of the base and h is the height of the cylinder.

Let's calculate the values using the given measurements: - Radius (r) = 2 cm - Height (h) = 5.5 cm

Calculations

1. Drawing the Unfolded Cylinder: - The net of the cylinder will consist of two circles with a radius of 2 cm and a rectangle with a length of the circumference of the base (2πr) and a height of 5.5 cm.

2. Finding the Total Surface Area of the Cylinder: - Total Surface Area = 2π(2)(5.5 + 2) = 2π(2)(7.5) = 30π cm^2

3. Finding the Volume of the Cylinder: - Volume = π(2^2)(5.5) = 4π(5.5) = 22π cm^3

So, the unfolded net of the cylinder can be drawn as described, and the total surface area of the cylinder is 30π cm^2, while the volume of the cylinder is 22π cm^3.