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Triangle GHI is an isosceles triangle with GH = GI and angle H = 30 degrees. Wha

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Question: Triangle GHI is an isosceles triangle with GH = GI and angle H = 30 degrees. What is the measure of angle I?

Options:

  1. 30 degrees
  2. 60 degrees
  3. 75 degrees
  4. 90 degrees

Correct Answer: 60 degrees

Solution: 

In an isosceles triangle, the base angles are equal. Therefore, angle G + angle I = 150 degrees. Each angle = 60 degrees.

Triangle GHI is an isosceles triangle with GH = GI and angle H = 30 degrees. Wha

Practice Questions

Q1
Triangle GHI is an isosceles triangle with GH = GI and angle H = 30 degrees. What is the measure of angle I?
  1. 30 degrees
  2. 60 degrees
  3. 75 degrees
  4. 90 degrees

Questions & Step-by-Step Solutions

Triangle GHI is an isosceles triangle with GH = GI and angle H = 30 degrees. What is the measure of angle I?
  • Isosceles Triangle Properties – In an isosceles triangle, the two angles opposite the equal sides are equal.
  • Angle Sum Property – The sum of the angles in any triangle is always 180 degrees.
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