Math Problem Statement

ABCD — правильний тетраедр, AB = a, BM : MD = 1 : 3. Знайдіть периметр і площу перерізу, який проходить через точки A, C, M.Найди отдельно сторону MC

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Solid Geometry
Tetrahedron
Coordinate Geometry

Formulas

Distance formula in 3D: \( d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2 + (z_2 - z_1)^2} \)
Section formula: \( M = \frac{mB + nD}{m+n} \)

Theorems

Properties of a regular tetrahedron
Distance formula in 3D
Section formula

Suitable Grade Level

Grades 10-12