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1 September, 14:54

The measures of the three angles of a triangle are given by 1. 3x + 1 2. 2x - 3, and 9x. What is the measure of the smallest angle?

A. 13 degrees

B. 23 degrees

C. 29 degrees

D. 40 degrees

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Answers (1)
  1. 1 September, 15:48
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    Since the total measure of all the angles of a triangle is always 180, solve for x with the equation: 3x+1+2x-3+9x=180. x=13. Now plug in x and look for the smallest one, which will be B. 23 degrees.
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