Angles less than 900 are called acute angles.
900 angles are called right angles.
Angles that are greater than 900 and less than 1800 are called obtuse angles.
1800 angles are called straight angles.
Anles greater than 1800 and less than 3600 are called reflex angles.
3600 angles are called full rotations.
1500 is therefore an obtuse angle.
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An obtuse angle
150 degrees
A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.A rectangle is not an angle (of any kind). It is a kind of quadrilateral.
Internal angle = 150° → external angle = 360° - 150° = 30° number of sides = 360 ° ÷ external angle = 360° ÷ 30° = 12 It has 12 sides.
Since each interior angle is 150 degrees, each exterior angle is 180-150 = 30 degrees. Therefore, the polygon has 360/30 = 12 sides.