A right-angled triangle has angles of (3x−5)∘(3x - 5)^\circ(3x−5)∘, (2x+20)∘(2x + 20)^\circ(2x+20)∘, and 90∘90^\circ90∘.
Find the size of the smallest angle in the triangle.
71 exam-style questions on Edexcel GCSE Maths Forming and Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.