In triangle GHI, if angle G = 30° and angle H = 70°, what is the measure of angl

Practice Questions

Q1
In triangle GHI, if angle G = 30° and angle H = 70°, what is the measure of angle I?
  1. 80°
  2. 60°
  3. 50°
  4. 40°

Questions & Step-by-Step Solutions

In triangle GHI, if angle G = 30° and angle H = 70°, what is the measure of angle I?
  • Step 1: Understand that the sum of all angles in a triangle is always 180°.
  • Step 2: Identify the given angles in triangle GHI: angle G = 30° and angle H = 70°.
  • Step 3: Add the measures of angle G and angle H together: 30° + 70° = 100°.
  • Step 4: Subtract the sum of angle G and angle H from 180° to find angle I: 180° - 100° = 80°.
  • Step 5: Conclude that the measure of angle I is 80°.
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