Question

Нарисовать окружность.отметить 8точек и соединить их отрезками.сколько отрезков получится

Answer 1

* - * - * - * - * - * - * - *-

звёздочки точки, полосы - линии, значит чтобы получить замкнутый многоугольник из линий, надо 8 отрезков

Answer 2

Drawing a Circle and Connecting 8 Points

To draw a circle and connect 8 points on its circumference, we can start by drawing a circle and then marking 8 equidistant points along its circumference. After that, we can connect these points with line segments. Let's calculate the number of line segments that will be formed.

Number of Line Segments: To calculate the number of line segments formed by connecting 8 equidistant points on the circumference of a circle, we can use the formula for combinations, which is given by: $$ C(n, 2) = \frac{n!}{2!(n-2)!} $$ where n is the number of points.

Substituting n = 8 into the formula: $$ C(8, 2) = \frac{8!}{2!(8-2)!} = \frac{8*7}{2} = 28 $$ So, 28 line segments will be formed by connecting 8 equidistant points on the circumference of a circle.

This calculation is based on the mathematical principle of combinations and is not specific to any particular programming language or tool.