In mathematics, a bearing is defined as an angle measured clockwise from north. Bearings are usually written as a three-figure bearing, with the angle always relative to north. Bearings are important for navigation in 2-dimensions such as when using maps, and are used by sailors, pilots, hikers, and the military. To calculate a bearing, one must find the angle clockwise from north. Start by drawing a vertical line representing north at the first location, then draw a line connecting the start location to the end location. Measure the clockwise angle between the north line and this line. Bearings are used in trigonometry, and there are bearings maths worksheets based on Edexcel, AQA, and OCR exam questions.