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UPCAT Mathematics practice question 10: The angles of a triangle are in the ratio 2 : 3 : 5. What is the measure of the largest angle?

Correct answer

A. 90°

The parts total 10, so each part is 180° ÷ 10 = 18°. The largest angle is 5 × 18° = 90°.

The angles of a triangle are in the ratio 2 : 3 : 5. What is the measure of the largest angle?

  1. 90°Correct
  2. 36°
  3. 54°
  4. 72°

Why A is correct

The parts total 10, so each part is 180° ÷ 10 = 18°. The largest angle is 5 × 18° = 90°.

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