1. In the diagram below, find \( \angle B \). working out:

To find \( \angle B \), you can use the fact that the angles in a triangle sum up to 180 degrees. If you have the measures of the other two angles, say \( \angle A \) and \( \angle C \), you can apply the formula: \[ \angle B = 180^\circ - (\angle A + \angle C). \] Just plug in the values of \( \angle A \) and \( \angle C \) you have. Now, remember that geometry is not just about calculations, but also about visualizing the shapes! Drawing the triangle and marking the angles can help solidify your understanding and avoid mistakes in computations. Always double-check that you're working with accurate angle measures to ensure correct results!