What Are Some Real World Examples of an Obtuse Angle?

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Obtuse angles are seen on most house rooftops, as the two roof surfaces slope down from it. Other real world examples of an obtuse angle include the angle between the screen and the base of an opened laptop, a hockey stick, an accordion hand fan and between the wings of a boomerang. In general, obtuse angles are observed whenever two sides, arms or surfaces deviate widely.