Exam about types of angle - acute, right, obtuse, reflex.
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\nAn angle that is $90^{\\circ}$ is called a right angle.
\nAn angle that is more than $90^{\\circ}$ and less than $180^{\\circ}$ is called obtuse.
\nAn angle that is more than $1800^{\\circ}$ is called reflex.
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