Engineering Board Exam Reviewer · Angles and Angle Measurement · easy

The angles of a triangle are in the ratio 2:3:4. Find the smallest angle.

  1. 20°
  2. 60°
  3. 80°
  4. 40°

Answer

D. 40°

Solution

2x+3x+4x=180° x=20°. The smallest angle is 2x=40°.

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