Answer:
a. Obtuse
b. Acute
c. Acute
Explanation:
Angles and their names
- An angle greater than 90° is an obtuse angle
- An angle less than 90° is an acute angle
- An angle equal to 90° is a right angle
- An angle equal to 180° is a straight angle
- An angle equal to 360° is a complete or whole angle.
In part a, we have an angle greater than 90°, so it's an obtuse angle
In part b, we have an angle less than 90°, so it's an acute angle
In part c, we have an angle less than 90°, so it's an acute angle
-Chetan K