Math Problem Statement
радіус основи кола 12см, знайти площину перерізу який проходить через вершину конуса і хорду основи яка стягує дугу 60° якщо площина перерізу утворює з площиною основи кут 45°
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Trigonometry
Conic Sections
Formulas
Chord length formula: l = 2R * sin(α/2)
Tangent function: tan(θ) = opposite/adjacent
Area of triangle: S = 1/2 * base * height
Theorems
Chord Theorem
Right Triangle Trigonometry
Suitable Grade Level
Grades 9-12
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