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0580/12 Oct/Nov 2022, Question 7: Angles in a Triangle

Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks

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The question, in short

An isosceles triangle has a base angle of 34° and a top angle of x°. Using the equal sides shown, find x.

Summarised in our own words. Use the official paper for the exact wording and the diagram.

Solution · 2 marks

  1. 1Base angles are equal: both 34°
  2. 2x = 180 − 34 × 2 = 112

Answer112

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