Question

Match List-I with List-II. List-I: A. Obtuse Angle, B. Straight Angle, C. Reflex Angle, D. Complete Angle. List-II: I. \(180^\circ\), II. \(360^\circ\), III. Angle between \(90^\circ\) and \(180^\circ\), IV. Angle between \(180^\circ\) and \(360^\circ\).

• A. A-IV, B-III, C-II, D-I
• B. A-III, B-I, C-IV, D-II
• C. A-II, B-IV, C-I, D-III
• D. A-I, B-II, C-III, D-IV

Hint:

Straight angle is \(180^\circ\), complete angle is \(360^\circ\), obtuse is between \(90^\circ\) and \(180^\circ\), and reflex is between \(180^\circ\) and \(360^\circ\).

Answer 1

The Correct Option is B

An obtuse angle is greater than \(90^\circ\) and less than \(180^\circ\). So: \[ A-III. \] A straight angle is exactly: \[ 180^\circ. \] So: \[ B-I. \] A reflex angle is greater than \(180^\circ\) and less than \(360^\circ\). So: \[ C-IV. \] A complete angle is exactly: \[ 360^\circ. \] So: \[ D-II. \] Therefore, the correct matching is: \[ A-III,\quad B-I,\quad C-IV,\quad D-II. \] Hence, the correct answer is option (B).