Horizontal and vertical lines Learn how to identify ... Measuring angles Find out how to measure angles up to 180 degrees using a protractor. Compare and order angles Learn how to compare the ...

A 180-degree angle means that there is no difference ... LCD and front and rear-projection screens. Horizontal and vertical angles are often not the same. For example, looking down on a screen ...

(Note this is also about the same degree of accuracy as the 50 m and 70° that are used in the question). From the top of a 72 m high vertical cliff, a boat has an angle of depression of 32°.