Real Life Examples of Geometric Angles

A Student Example:Clare Roggeman

W200

How Many Types of Angles Exist?

Four Angles

Acute Right Obtuse Straight

What is an Acute Angle? An acute angle is anything angle that is

less than 90 degrees.

What is a Right Angle? A right angle is any angle that is

exactly 90 degrees.

What is an Obtuse Angle? An obtuse angle is any angle that is

more than 90 degrees but less than 180 degrees.

What is a Straight Angle? A straight angle is any angle that

equals 180 degrees.

Where can an Acute Angle be found in the Real World?

Bike spokes

Where can a Right Angle be found in the Real World?

Exit sign Four right angles

Where can an Obtuse Angle be found in the Real World?

Door hinge

Where can a Straight Angle be found in the Real World?

Table edge

Works/Pictures Cited http://points.donmcleer.com/category/d

esign/ http://

etc.usf.edu/clipart/38500/38572/angleacute_38572_lg.gif

http://oald8.oxfordlearnersdictionaries.com/dictionary/right-angle

http://www.mathsisfun.com/definitions/obtuse-angle.html

http://www.mathsisfun.com/geometry/straight-angle.html