Answers

2015-11-25T20:37:23+08:00
Acute angle: lower than 90 degrees but higher than 0 degree
Right angle: exactly 90 degrees
Obtuse angle: greater than 90 degrees but lower than 180 degrees
Straight angle: exactly 180 degrees
Reflex angle: greater than 180 degrees but lower than 360 degrees
1 Revolution: exactly 360 degrees
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2015-11-25T21:12:25+08:00
Acute angle: An angle whose measure is less than 90 degrees. The following is an acute angle. Right angle: An angle whose measure is 90 degrees. The following is a right angle.Right angle Obtuse angle: An angle whose measure is bigger than 90 degrees but less than 180 degrees. Thus, it is between 90 degrees and 180 degrees. The following is an obtuse angle. Straight angle An angle whose measure is 180 degrees.Thus, a straight angle look like a straight line. The following is a straight angle. Reflex angle: An angle whose measure is bigger than 180 degrees but less than 360 degrees.The following is a reflex angle.  
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