9) How many angles are greater than 90° in the given figures?
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Step-by-step explanation:
There are five types of angles:
Acute= Angles more than 0° but less than 90°
Obtuse= Angles more than 90° but less than 180°
Right = Angles with a measure of 90°
Straight= angles exactly measuring 180°
Reflex= Angle greater than 180° and less than 360°
Full= Angle exactly 360°
Zero = Angle exactly 0° (when both the arms are at same position).
As stated above, if the measure of an angle is greater than 90° but less than 180° is an Obtuse Angle
Here are the photos of all angles:
Attachments:
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