If the angles of triangle JKL are in the ratio 2:3:4, what is the measure of the

Practice Questions

Q1
If the angles of triangle JKL are in the ratio 2:3:4, what is the measure of the largest angle? (2023)
  1. 40 degrees
  2. 60 degrees
  3. 80 degrees
  4. 90 degrees

Questions & Step-by-Step Solutions

If the angles of triangle JKL are in the ratio 2:3:4, what is the measure of the largest angle? (2023)
  • Step 1: Understand that the angles of triangle JKL are in the ratio 2:3:4.
  • Step 2: Let the angles be represented as 2x, 3x, and 4x, where x is a common multiplier.
  • Step 3: Add the angles together: 2x + 3x + 4x.
  • Step 4: Simplify the equation: 2x + 3x + 4x = 9x.
  • Step 5: Set the sum of the angles equal to 180 degrees (the total degrees in a triangle): 9x = 180.
  • Step 6: Solve for x by dividing both sides by 9: x = 180 / 9.
  • Step 7: Calculate x: x = 20.
  • Step 8: Find the largest angle by calculating 4x: 4x = 4 * 20.
  • Step 9: Calculate the largest angle: 4x = 80 degrees.
  • Angle Sum Property of Triangles – The sum of the interior angles of a triangle is always 180 degrees.
  • Ratios – Understanding how to work with ratios to express relationships between quantities.
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