Question

angle classification
name the angle type
name:morgan hr. 1

Explanation:

1. First row (left - to - right):

• The first angle: An acute angle is an angle that measures less than \(90^{\circ}\). The first angle has a measure less than \(90^{\circ}\).
• The second angle: A right angle is an angle that measures exactly \(90^{\circ}\) (as indicated by the small square).
• The third angle: An obtuse angle is an angle that measures between \(90^{\circ}\) and \(180^{\circ}\).
• The fourth angle: A straight angle is an angle that measures exactly \(180^{\circ}\).

1. Second row (left - to - right):

• The first set of angles: Acute angles (each of the individual small angles formed at the vertex is less than \(90^{\circ}\)).
• The second set of angles: One right angle (the square - marked angle) and acute angles (the non - square - marked angles are less than \(90^{\circ}\)).
• The third set of angles: Acute angles (\(\angle AOB,\angle AOC,\angle BOC\) are all less than \(90^{\circ}\)).
• The fourth angle: An obtuse angle (the angle formed at the vertex is between \(90^{\circ}\) and \(180^{\circ}\)).

1. Third row (left - to - right):

• The first set of angles: Vertical angles (opposite angles formed by the intersection of two lines).
• The second set of angles: Right angles (the angles formed by the perpendicular lines, each measures \(90^{\circ}\)).

Answer:

1. First row: Acute angle, Right angle, Obtuse angle, Straight angle
2. Second row: Acute angles, Right - and - acute angles, Acute angles, Obtuse angle
3. Third row: Vertical angles, Right angles