EasyMath· Geometry and Trigonometry· Lines, angles, and triangles· MCQ
In the triangle above, . What is the value of b ?
A
52
B
59
C
76
D
104
Correct answer: A
Explanation
Choice A is correct. The sum of the measures of the three interior angles of a triangle is 180°. Therefore, . Since it’s given that , it follows that , or . Dividing both sides of this equation by 2 yields .
Choice B is incorrect and may result from a calculation error. Choice C is incorrect. This is the value of . Choice D is incorrect. This is the value of .
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id cb_question_bank:895dd09d-383e-4e4f-82b1-4ff30d6e0297 · question 410bdbe6 · IBN 029330-DC
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