MCQ on Understanding Elementary Shapes for Class 6
Class 6 Maths Chapter 5 Understanding Elementary Shapes MCQ
MCQ of The Understanding Elementary Shapes Class 6
Question 1.
Which of the following is an obtuse angle ? ( )
A) 90°
B) 45°
C) 135°
D) 180°
Answer:
C) 135°
Question 2.
270° is an example for ( )
A) Right angle
B) Obtuse angle
C) Straight angle
D) Reflex angle
Answer:
D) Reflex angle
Question 3.
A right angle measures ( )
A) 180°
B) 90°
C) 150°
D) 360°
Answer:
B) 90°
Question 4.
Which of the following is an acute angle? ( )
Answer:
(B)
Question 5.
A complete angle measures ( )
A) 180°
B) 0°
C) 360°
D) 200°
Answer:
C) 360°
Question 6.
From the below figure \(\overline{\mathrm{BC}})\) = _____ cm ( )
A) 2 cm
B) 3 cm
C) 2.5 cm
D) 3.5 cm
Answer:
C) 2.5 cm
Question 7.
Line segment AB is denoted by _____ ( )
A) \(\overline{\mathrm{AB}})\)
B) \(\overleftrightarrow{\mathrm{AB}}\)
C) \(\overrightarrow{A B}\)
D) \(\overrightarrow{ BA}\)
Answer:
A) \(\overline{\mathrm{AB}})\)
Question 8.
From the 6th sum number of line segments are formed _____ ( )
A) \(\overline{A B}\)
B) \(\overline{A C}\)
C) \(\overline{ B C}\)
D) All the above
Answer:
D) All the above
Question 9.
Which of the following is not an example of a line segment?
A) Edge of a door
B) Edge of a textbook
C) Edge of a cellphone
D) Curve of a ball
Answer:
D) Curve of a ball
Question 10.
What is the angle between minute and hours hand when it is 9.00 A.M ? ( )
A) 90°
B) 180°
C) 270°
D) 45°
Answer:
A) 90°
Question 11.
Which of the following represents an angle 180° between the hands of a clock at _____ ( )
A) 6.30 P.M
B) 6.00 P.M
C) 12.00 P.M
D) 8.45 A.M
Answer:
B) 6.00 P.M
Question 12.
Which of the following represents an acute angle ? ( )
Answer:
(C)
Question 13.
Which of the following is an obtuse angle? ( )
Answer:
(A)
Question 14.
Which of the following is a right angle? ( )
A) 45°
B) 90°
C) 120°
D) 180°
Answer:
B) 90°
Question 15.
Which of the following is a straight angle ?
A) 0°
B) 90°
C) 180°
D) 360°
Answer:
C) 180°
Question 16.
Which of the following is a reflex angle ?
A) 175°
B) 180°
C) 360°
D) 270°
Answer:
D) 270°
Question 17.
Which of the following is a complete angle?
A) 90°
B) 180°
C) 270°
D) 360°
Answer:
D) 360°
Question 18.
Which of the following are perpendicular lines? ()
Answer:
(A)
Question 19.
Number of perpendicular lines can be drawn to a given lines? ( )
A) 0
B) 1
C) 2
D) Infinite
Answer:
D) Infinite
Question 20.
1° = ……….. a past of one rotation. ( )
A) \(\frac{1}{90^{\mathrm{th}}}\)
B) \(\frac{1}{180^{\mathrm{th}}}\)
C) \(\frac{1}{270^{\mathrm{th}}}\)
D) \(\frac{1}{360^{\mathrm{th}}}\)
Answer:
D) \(\frac{1}{360^{\mathrm{th}}}\)
Question 21.
Which of the following are parallel line? ( )
Answer:
()
Question 22.
How many right angles makes a complete angle? ( )
A) 1
B) 2
C) 3
D) 4
Answer:
D) 4
Question 23.
Which of the following is not true from the given below figure ? ( )
A) AC + CD + DB = AB
B) \(\overline{\mathrm{CD}}\) = AB – (AC + DB)
C) \(\overline{\mathrm{CD}}\) = \(\overline{\mathrm{AD}}\) – \(\overline{\mathrm{AC}}\)
D) \(\overline{\mathrm{CD}}\) = \(\overline{\mathrm{BD}}\) – \(\overline{\mathrm{AC}}\)
Answer:
D) \(\overline{\mathrm{CD}}\) = \(\overline{\mathrm{BD}}\) – \(\overline{\mathrm{AC}}\)
Question 24.
Which of the following is true from the above figure ? ( )
A) AC > AD
B) CD > BC
C) AD < BD
D) BC > AC
Answer:
D) BC > AC
Question 25.
Right angle lies between which two angles ? ( )
A) 0° – 45°
B) 0° – 89°
C) 45° – 90°
D) 0° – 99°
Answer:
D) 0° – 99°
Question 26.
Which of the following is not true ? ( )
A) 240° is an acute angle
B) 120 is an obtuse angle
C) 181° is a straight angle
D) 360° is a complete angle
Answer:
C) 181° is a straight angle
Question 27.
Which of the following is not true ? ( )
A) Intersecting lines meet at a single point
B) Non-intersecting lines are parallel
C) If two lines are ⊥ then the angle between them is 90°
D) A line separates a plane into 4 parts
Answer:
D) A line separates a plane into 4 parts
Question 28.
An angle which is less than 90° is angle called a ( )
A) acute
B) right
C) obtuse
D) reflex
Answer:
A) acute
Question 29.
An angle which is 90° < θ < 180°, then θ is _____ ( )
A) acute
B) right
C) obtuse
D) straight
Answer:
C) obtuse
Question 30.
An angle which lies between 180° and 360° then it is called a _____ angle. ( )
A) right
B) straight
C) complete
D) reflex
Answer:
D) reflex
Question 31.
Non-intersecting lines are called _____ lines. ()
A) parallel
B) perpendicular
C) intersecting
D) concurrent
Answer:
A) parallel
Question 32.
If two lines meet at 90°, then they are called _____ lines. ( )
A) parallel
B) perpendicular
C) intersecting
D) concurrent
Answer:
B) perpendicular
Question 33.
A line segment has _____ end points. ( )
A) 0
B) 1
C) 2
D) 3
Answer:
C) 2
Question 34.
An angle which is equal to 180° is called a ___ angle. ( )
A) straight
B) right
C) reflex
D) complete
Answer:
A) straight
Question 35.
The instrument used to compare and measure angles more precisely is ( )
A) Protractor
B) Divider
C) Ruler
D) Set squares
Answer:
A) Protractor
Question 36.
Which letter of English alphabet is an example for perpendicular lines ? ( )
A) V
B) T
C) M
D) P
Answer:
B) T
Question 37.
Which letter of English alphabet is an example for both perpendicular lines and parallel lines’?
A) H
B) L
C) X
D) Z
Answer:
A) H
Question 38.
The edges of this instrument are perpendicular to each other? ( )
A) Divider
B) Compass
C) Set squares
D) Protractor
Answer:
C) Set squares
Question 39.
The type of angle formed between the hands of a clock at 6 ‘0’ clock in the evening ( )
A) Straight line
B) Acute angle
C) Obtuse angle
D) Right angle
Answer:
A) Straight line
Question 40.
At what time the two hands of a clock coincide? ( )
A) At 3′ o clock in the evening
B) At 4′ o clock in the evening
C) At 12 noon
D) At 9 ‘ o clock in the morning
Answer:
C) At 12 noon
Question 41.
Match the following : ( )
| i) Right angle | a) 180° |
| ii) Acute angle | b) 270° |
| iii) Straight angle | c) 60° |
| iv) Reflex angle | d) 90° |
A) i – d, ii – c, iii – a, iv – b
B) i – d, ii – a, iii – c, iv – b
C) i – d, ii – b, iii – c, iv – a
D) i – a, ii – c, iii -d, iv – b
Answer:
A) i – d, ii – c, iii – a, iv – b
Question 42.
What angle is formed when the minute hand moves from 12 to 6 ? ( )
A) Right angle
B) Straight angle
C) Acute angle
D) Obtuse angle
Answer:
B) Straight angle
Question 43.
Which of the following state-ments is false? ( )
A) A triangle can have all the three angles acute.
B) A triangle can have two obtuse angles.
C) A triangle can have only one right angle.
D) All the above
Answer:
B) A triangle can have two obtuse angles.
Question 44.
Match the polygon names in item – I to its number of sides in item – II. ( )
| Item-I | Item-II |
| i) Pentagon | a) 3 |
| ii) Hexagon | b) 4 |
| iii) Quadrilateral | c) 5 |
| iv) Triangle | d) 6 |
A) i – d, ii – c, iii – b, iv – a
B) i – c, ii – d, iii – , iv – a
C) i – b, ii – d, iii – c, iv – a
D) i – b, ii – d, iii – c, iv – a
Answer:
B) i – c, ii – d, iii – , iv – a
Question 45.
i) All angles are right angles.
ii) Opposite sides are in equal length.
Given which of the following quadrilateral satisfy the above conditions ? ( )
A) Trapezium
B) Rhombus
C) Rectangle
D) Kite
Answer:
C) Rectangle
Question 46.
Statement P : All sides of a parallelogram are of equal length. ( )
Statement Q : Each angle of a square is a right angle.
A) P – True, Q – False
B) P – False, Q – True
C) Both P and Q are false
D) Both P and Q are true
Answer:
B) P – False, Q – True
Question 47.
In the given below figures, how many pair of parallel lines are there ? ( )
A) 5
B) 3
C) 2
D) 1
Answer:
C) 2
Question 48.
Match the following :
| Length of the side of a triangle | Type of the triangle |
| i) 5 cm, 5 cm, 7 cm | a) Scalene triangle |
| ii) 5 cm, 6 cm, 7 cm | b) Isosceles triangle |
| iii) 6 cm, 6 cm, 6 cm | c) Equilateral triangle |
A) i – c, ii – b, iii – a
B) i – a, ii – b, iii – c
C) i – b, ii – c, iii – a
D) i – b, ii – a, iii – c
Answer:
D) i – b, ii – a, iii – c
Question 49.
Match the following :
Table
A) a – iii, b – ii, c – i
B) a – iii, b – i, c – ii
C) a – i, b – iii, c – ii
D) a – i, b – ii, c – iii
Answer:
A) a – iii, b – ii, c – i
Question 50.
In the given triangles, Right angle triangle is ( )
Answer:
(C)
Question 51.
Which of the following statements are True? ( )
i) All sides of a rhombus are of equal length.
ii) Each angle of a parallelogram is a right angle.
iii) Square is also a rhombus.
A) i and ii
B) i and iii
C) ii and iii
D) i, ii and iii
Answer:
B) i and iii
Question 52.
Match the following :
A) a – ii, b – iv, c – i, d – iii
B) a – iv, b – ii, c – i, d – iii
C) a – ii, b – iii, c – iv, d – i
D) a – ii, b – i, c – iii, d – iv
Answer:
A) a – ii, b – iv, c – i, d – iii
Question 53.
Which of the following is a measure of a acute angle ? ( )
A) 30°
B) 50°
C) 60°
D) all the above
Answer:
D) all the above
Question 54.
Statement – I : Each angle of a rectangle is a right angle.
Statement – II : The opposite sides of a parallelogram are equal in length.
Statement – III : All sides of a trapezium are equal in length.
Statement – IV : All angles of a’ rhombus are equal.
A) I – True, II – True, III – True, IV – False
B) I – True, II – False, III – True, IV – False
C) I – True, II – True, III – False, IV – False
D) I – False, II – True, III – True, IV – True
Answer:
C) I – True, II – True, III – False, IV – False
Question 55.
\(\frac { 1 }{ 2 }\) right angle is ( )
A) 90°
B) 30°
C) 60°
D) 45°
Answer:
D) 45°
Question 56.
A right angled triangle has ______ acute angles. ( )
A) 3
B) 4
C) 1
D) 2
Answer:
D) 2
Question 57.
A polygon having eight sides is called ( )
A) Octagon
B) Hexagon
C) Pentagon
D) Triangle
Answer:
A) Octagon
Question 58.
Which instrument in your box is used to measure the length of a line segment? ( )
A) Divider
B) Ruler
C) Protractor
D) Compass
Answer:
B) Ruler
Question 59.
How many right angles are there in the letter of English alphabet ‘H’? ( )
A) 4
B) 3
C) 2
D) 1
Answer:
A) 4