BBC3 年
Finding angles between lines Missing angles question
\(x\) is 50°. Corresponding angles are equal. \(y\) is 180° - 50° = 130°. Angles on a straight line add up to 180°.
BBC2 年
How to find the missing angles on crossing lines
Click to see a step-by-step slideshow. STEP 2: Label the angle you know and colour in the angle arc. Colour in the opposite angle in the same colour, and the other two angles in a different colour.