Verified answer

1. Acute angle
2. Right angle
3. Obtuse angle
4. Acute angle
5. Right angle

Step-by-step explanation:

Acute angles measure less than 90 degrees.

• an acute angle is an angle that measures between 90° and 0°

Right angles measure 90 degrees.

• the angle bounded by two lines perpendicular to each other : an angle of 90° or ¹/₂ π radians.

Obtuse angles measure more than 90 degrees.

• Obtuse angle is any angle greater than 90°: Straight angle is an angle measured equal to 180°