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DorelTibi
 2 years ago
Find the measure of angle DCA if D is the incenter of the triangle ABC.
http://curriculum.kcdistancelearning.com/courses/GEOMxHSA09/a/assessments/TTrianglesUnitExam/Geometry_Unit4_Exam_25q.gif
DorelTibi
 2 years ago
Find the measure of angle DCA if D is the incenter of the triangle ABC. http://curriculum.kcdistancelearning.com/courses/GEOMxHSA09/a/assessments/TTrianglesUnitExam/Geometry_Unit4_Exam_25q.gif

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RadEn
 2 years ago
Best ResponseYou've already chosen the best response.1let the measure of DCA is x, so DCB also x (remember that bisector always divides an angle in triangle be same 2 parts), and we knowed that the sum all interior angles in a triangle is 180 degrees, therefore we can represent it be : 2*32 + 2*37 + 2x = 180, solve for x

DorelTibi
 2 years ago
Best ResponseYou've already chosen the best response.0so the answer be DCA = 21

RadEn
 2 years ago
Best ResponseYou've already chosen the best response.12*32 + 2*37 + 2x = 180 64 + 74 + 2x = 180 138 + 2x = 180 2x = 180138 2x = 42 x = 42/2 = 21 u are right
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