The size of the largest angle in a triangle is four times the size of the smallest angle. The other angle is 30∘ 30^\circ\,30∘ more than the smallest angle.
Verify that, in degrees, the size of each angle in the triangle is 25∘25^\circ25∘, 55∘ 55^\circ\,55∘ and 100∘100^\circ100∘. You must show your working.
139 exam-style questions on AQA GCSE Maths Forming and Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.