Math Problem Statement

En un triángulo ABC (AB=BC) se ubica el punto "D" en AB, tal que: CD=AC. Calcule la m∢CBA, si: m∢DCA=40º. 30° 60° 75° 40

Solution

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Math Problem Analysis

Mathematical Concepts

Geometry
Isosceles Triangles
Angle Sum Property

Formulas

Sum of interior angles of a triangle = 180°

Theorems

Base angles of an isosceles triangle are equal
Sum of interior angles of a triangle

Suitable Grade Level

Grades 9-11