Mathematics Multiple Choice Questions on “Lines and Angles Definitions and Basic Terms”.
1. A line with two endpoints is called __________
a) line
b) ray
c) line-segment
d) triangle
Answer: c
2. How many endpoints does a ray have?
a) One
b) Two
c) Three
d) Four
Answer: a
3. If x is an acute angle, then what is true for x?
a) x = 90°
b) 0° < x < 90°
c) 90° < x < 180°
d) 180° < x < 360°
4. If x is an obtuse angle, then what is true for x?
a) x = 90°
b) 180° < x < 360°
c) 0° < x < 90°
d) 90° < x < 180°
Answer: d
5. If x is a right angle, what is true for x?
a) x = 90°
b) 180° < x < 360°
c) 0° < x < 90°
d) 90° < x < 180°
Answer: a
6. What is the angle formed by a line?
a) 90°
b) 180°
c) 270°
d) 360°
Answer: b
7. If 180° < x < 360°, then x is a __________ angle.
a) acute
b) obtuse
c) reflex
d) right
Answer: c
8. The sum of complimentary angles is __________
a) > 90°
b) < 90°
c) = 90°
d) = 180°
Answer: c
9. The sum of two supplementary angles is __________
a) > 90°
b) < 90°
c) = 90°
d) = 180°
Answer: d