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angles. Done by : Alaa & Aliaa Majdi. Types of Angles. Right angles. A right angle is an internal angle which is equal to 90°.
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angles Done by : Alaa & AliaaMajdi
Right angles A right angle is an internal angle which is equal to 90° Note the special symbol like a box in the angle. If you see this, it is a right angle. The 90° is rarely written in. If you see the box in the corner, you are being told it is a right angle.
Acute angles An Acute Angle is less than 90° All the angles below are acute angles:>
Obtuse angles An Obtuse Angle is more than 90° but less than 180° All the angles below are obtuse angles:
Straight angle A straight angle changes the direction to point the opposite way. Sometimes people say "You did a complete 180 on that!" ... meaning you completely changed your mind, idea or direction.
Reflex angles A Reflex Angle is more than 180° but less than 360° All the angles below are reflex angles: