Question

Прямоугольник со сторонами 1 и 2 вращается вокруг меньшей стороны найдите длину окружностилежащей в основании полученного тела

Answer 1

Тело вращения цилиндр. R=2, H=1
L=2πR
L=2π*2
L=4π

Answer 2

Calculation of the Circumference of the Base of the Rotated Rectangle

To find the length of the circumference of the base of the rotated rectangle, we need to calculate the circumference of the circle formed by rotating the shorter side of the rectangle.

Given that the shorter side of the rectangle is 1 unit and the longer side is 2 units, we can calculate the circumference of the circle using the formula:

Circumference = 2 * π * radius

In this case, the radius of the circle is equal to half the length of the shorter side of the rectangle, which is 1/2 = 0.5 units.

Substituting the values into the formula, we get:

Circumference = 2 * π * 0.5 = π units

Therefore, the length of the circumference of the base of the rotated rectangle is π units.

Please note that the value of π is approximately 3.14159.