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Two right angles are formed during each hourly period 4-5, 5-6, 6-7, 7-8, 8-9.
However, when the clock reaches 9pm, this coincides with the second 90° between the hours of 8-9. The clock has then to reach approximately 9.34pm for the only occasion when the hands will be at 90° in the hour 9-10.
A 90 degree angle is a right angle
2
A 90 degree angle is formed at a right angle.
A reflex angle.
It is a 90 degree angle, which can be formed by two perpendicular lines.
A 90 degree angle is a right angle
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2
A 90 degree angle is formed at a right angle.
45 degree angle
Two 20 degree acute angles will be formed.
A reflex angle.
It is a 90 degree angle, which can be formed by two perpendicular lines.
180 Degree.
15 degrees. A bisected 60 degree angle makes 2 30 degree angles by definition of an angle bisector, then a 30 degree angle makes 2 15 degree angles by definition of an angle bisector.
An obtuse angle
20