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High school geometry

Course: High school geometry > Unit 3

Lesson 5: Working with triangles
Math
High school geometry
Congruence
Working with triangles
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Find angles in congruent triangles

CCSS.Math: HSG.SRT.B.5
Google Classroom

Problem

What is the value of x in the figure shown below?
Triangles A B C and B C D are shown sharing the same side B C with sides A B and C D both being four units. Sides B D and A C are both four point four units. Angle D B C is x degrees. Angle A C B is fifty-two degrees. Angle A B C is sixty-one degrees.
x, equals
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0, point, 75
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
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