An angle greater than 90° and less than 180°, acute angle, reflex angle, right angle, obtuse angle, What is a quarter turn?, 45°, 180°, 90°, 270°, How many right angles are in a straight angle?, 1, 2, 3, 4, Is a full turn 180° ?, Yes, No, An angle greater than 180° and less than 360°, obtuse angle, reflex angle, straight angle, acute angle, , obtuse angle, reflex angle, straight angle, acute angle, , obtuse angle, reflex angle, straight angle, acute angle, Find the value of x., 37, 127, 53, Find the value of x., 45, 135, 55, Find the value of a., 123, 57, 63, Find the value of a., 74, 106, 100.

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