CBSE Class 6 Mathematics Lines and Angles MCQs Set 05

Question. An angle that is exactly half of a straight angle is called...
(a) Right angle
(b) Small angle
(c) Half angle
(d) Acute angle

Answer: A

Question. Tool in your geometry box to measure angles is...
(a) Ruler
(b) Protractor
(c) Eraser
(d) Sharpener

Answer: B

Question. Which tool is used to measure angles?
(a) Ruler
(b) Compass
(c) Protractor
(d) Divider

Answer: C

Question. If you extend a line segment forever on both sides, you get a...
(a) Point
(b) Ray
(c) Line
(d) Angle

Answer: C

Question. Angle made by a half turn where arms lie in a straight line is called...
(a) Right angle
(b) Straight angle
(c) Acute angle
(d) Small angle

Answer: B

Question. Which of the following angles is the measure of an obtuse angle?
(a) 60°
(b) 120°
(c) 90°
(d) 30°

Answer: B

Question. A ray has how many starting points?
(a) One
(b) Two
(c) Three
(d) None of the options

Answer: A

Question. An angle of 1/4th of a full rotation is called a:
(a) Straight angle
(b) Reflex angle
(c) Right angle
(d) Acute angle

Answer: C

Question. An angle of 210 degrees is which type?
(a) Acute
(b) Obtuse
(c) Reflex
(d) Right

Answer: C

Question. The line that divides an angle into two equal parts is the...
(a) Ray
(b) Vertex
(c) Angle bisector
(d) Arm

Answer: C

Question. Where will the hand of a clock stop if it starts at 5 and makes 14 of a revolution clockwise?
(a) 7
(b) 8
(c) 9
(d) 10

Answer: B

Question. A triangle can have how many right angles?
(a) 1
(b) 2
(c) 3
(d) 0

Answer: A

Question. The vertex of an angle is:
(a) The endpoint where two rays meet
(b) A point where two lines intersect
(c) A fixed point on a line segment
(d) The longest ray in an angle

Answer: A

Question. How many degrees are there in a full circle?
(a) 180°
(b) 270°
(c) 360°
(d) 90°

Answer: C

Question. The process of dividing an angle into two equal parts is called...
(a) Adding
(b) Cutting
(c) Bisecting
(d) Measuring

Answer: C

Question. A line has fixed length?
(a) Yes, we can measure
(b) No, it goes forever
(c) Only 10 cm
(d) Only 5 cm

Answer: B

Question. Two perpendicular lines form an angle of:
(a) 45°
(b) 90°
(c) 180°
(d) 360°

Answer: B

Question. Which of these is true about the arms of an angle?
(a) They are parallel to each other
(b) They start from the vertex
(c) They always form a right angle
(d) They never intersect

Answer: B

Question. An acute angle measures:
(a) Less than 90°
(b) 90°
(c) More than 90°
(d) 180°

Answer: A

Question. Any ray dividing a straight angle into two equal parts makes two...
(a) Acute angles
(b) Right angles
(c) Obtuse angles
(d) Reflex angles

Answer: B