Math Problem Statement
ABCD — правильний тетраедр, AB = a, B : MD = 1 : 3. Знайдіть периметр і площу перерізу, який проходить через точки A, C, M.
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Solid Geometry
Plane Sections
Vector Algebra
Formulas
Perimeter of triangle = sum of side lengths
Area of triangle using vector cross product
Internal division formula for coordinates
Equation of a plane through three points
Theorems
Heron's formula for area of a triangle
Vector cross product for normal vector to a plane
Suitable Grade Level
Grades 10-12
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