An acute angle is an angle that measures less than 90 degrees. For example, in an equilateral triangle, all three angles measure 60˚, making it an acute triangle. Acute triangle. Dividing the right angle will give us two or more acute angles since each newly formed angle will be less than 90˚.
obtuse angle:(secondpic)
An obtuse angle is a type of angle that is always larger than 90° but less than 180°. In other words, it lies between 90° and 180°.
right angle:(third pic )
In geometry and trigonometry, a right angle is an angle of exactly 90° (degrees), corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles.
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acute angle: ( first pic)
obtuse angle: ( second pic)
right angle: ( third pic )
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