Math Problem Statement
Cho tam giác ABC CÓ B = 120 ĐỘ C BẰNG 30 ĐỘ VÀ S = 9 CĂN 3. TÍNH ĐỘ DÀI CÁC CẠNH
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Trigonometry
Triangle Area
Cosine Law
Formulas
Triangle Area Formula: S = (1/2)ab*sin(C)
Cosine Law: c^2 = a^2 + b^2 - 2ab*cos(B)
Theorems
Cosine Law
Sum of Angles in a Triangle
Suitable Grade Level
Grades 10-12
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