0580/12 Oct/Nov 2024, Question 9: 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 two equal sloping sides, with a top angle of x° and a base angle of 43°. Find x.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1The base angles are equal: both 43°
- 2x + 2 × 43 = 180
- 3x = 180 − 86 = 94
Answer94
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Also searched as: 0580/12/O/N/24 · 0580_w24_qp_12 · 0580 w24 12 · question 9.
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