Save guides, add subjects and pick up where you left off with your BBC account. \(x\) is 50°. Corresponding angles are equal. \(y\) is 180° - 50° = 130°. Angles on a straight line add up to 180°.

Parallel lines in shapes can form corresponding and alternate angles. You can use these properties to find missing angles. Angles in triangles and quadrilaterals Angles inside a shape are called ...