SAT Math Multiple Choice Question 952: Answer and Explanation

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Question: 952

4. The angles of a triangle are in the ratio 2:3:4. What is the degree measure of thelargest angle?

  • A. 40
  • B. 80
  • C. 90
  • D. 120

Correct Answer: B



Difficulty: Easy

Category: Additional Topics in Math / Geometry

Strategic Advice: Use the fact that the sum of the measures of the interior angles of every triangle is 180°.

Getting to the Answer: Because the angles are in the ratio 2:3:4, use 2x, 3x, and 4x to represent their measures. This means, or when simplified,, which yields. The largest angle has measure 4x, or, making (B) the correct answer.

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