Question

Висота циліндра становить 9 см, радіус - 5 см. Знайти периметр перерізу циліндра

Answer 1

Ответ:   38  см .

Пошаговое объяснение:

 H = 9 c ,  R = 5 c ;  P пер - ?    Р пер = 2 ( 2R + H ) ;

   P пер = 2 * ( 2* 5 + 9 ) = 2 * 19 = 38 ( см ) .

Answer 2

Perimeter of Cylinder Cross-Section

To find the perimeter of the cross-section of a cylinder, we need to determine the shape of the cross-section. In this case, the cross-section of the cylinder is a circle, as the cylinder has a circular base.

The formula to calculate the perimeter of a circle is given by:

Perimeter of Circle = 2 * π * radius

Given that the radius of the cylinder is 5 cm, we can substitute this value into the formula to find the perimeter of the cross-section.

Perimeter of Cylinder Cross-Section = 2 * π * 5 cm

Now, let's calculate the perimeter using the value of π as approximately 3.14159.

Perimeter of Cylinder Cross-Section = 2 * 3.14159 * 5 cm

Calculating the above expression, we get:

Perimeter of Cylinder Cross-Section ≈ 31.4159 cm

Therefore, the perimeter of the cross-section of the cylinder is approximately 31.4159 cm.

Please note that the above calculation assumes that the cross-section is a perfect circle. If there are any irregularities or deformations in the shape of the cross-section, the calculated perimeter may not be accurate.

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