Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

DorelTibi

  • 3 years ago

Find the measure of angle DCA if D is the incenter of the triangle ABC. http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/a/assessments/T-TrianglesUnitExam/Geometry_Unit4_Exam_25q.gif

  • This Question is Closed
  1. RadEn
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    let 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

  2. DorelTibi
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so the answer be DCA = 21

  3. RadEn
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    2*32 + 2*37 + 2x = 180 64 + 74 + 2x = 180 138 + 2x = 180 2x = 180-138 2x = 42 x = 42/2 = 21 u are right

  4. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy