Set 9
- Acute. 0° < 13.5° < 90°.
- Right angle.90°.
- Reflexive.180° < 246° < 360°.
- Straight angle. 180°.
- Obtuse.∠KLM is greater than 90° and less than 180°.
- Straight.∠KLM is a straight line which measures 180°.
- Right. ∠MJS is equal 90°.
Set 10
- Acute. ∠TOE, ∠EOT, or ∠O.
- Obtuse.∠1.
- Right. ∠ROS, ∠SOR, or ∠O.
- Right.∠ABY or ∠YBA.
Right.∠YBC or ∠CBY.
Straight.∠ABC and ∠CBA. - Acute. ∠1.
Acute. ∠2.
Right.∠UVW or ∠WVU. - Since the vertex point is not labeled, the only angle that can be
named by letter using a letter is ∠Κ, which is reflexive because it is
greater than 180° and less than 360°
Right. ∠3.
Acute. ∠4. - Reflexive. ∠1.
Acute. ∠2.
501 Geometry Questions