Math Problem Statement

На миллиметровку бросают сосновую иголку длиной 1 см. Найдите среднее число пересечений с линиями сетки (да, сосновая иголка прямой быть не обязана).

Solution

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Math Problem Analysis

Mathematical Concepts

Geometrical Probability
Buffon's Needle Problem

Formulas

E(N) = 2L / a
L = 1 см (length of the needle)
a = 1 см (distance between grid lines)

Theorems

Buffon's Needle Theorem

Suitable Grade Level

University or Advanced High School