Math Problem Statement
त्रिभुज ABC की भुजा BC को D तक बढ़ा दिया जाता है उसमे यदि कोण ACD=112, कोण ABC= 3/4 कोण BAC तो कोण ABC= ? A. 80 B.40 C 60 D 20
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Triangles
Angle Properties
External Angle Theorem
Formulas
External Angle Theorem: External angle = Sum of two opposite interior angles
Proportion: ABC = (3/4) * BAC
Theorems
External Angle Theorem
Suitable Grade Level
Grades 8-10
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