MCQ on Practical Geometry for Class 8
Class 8 Maths Chapter 4 Practical Geometry MCQ
MCQ of Practical Geometry Class 8
I. Choose the correct answer.
Question 1.
How many measurements of a quadrilateral can make it unique ?
A) 4
B) 3
C) 2
D) 5
Answer:
D) 5
Question 2.
Which of the following cases, a parallelogram ‘KING’ cannot be constructed ?
A) IN = 6 cm, NG = 4.5 cm, IG = 7.5 cm
B) KI = 5 cm, IN = 6 cm, IG = 6.5 cm
C) KI = 5 cm, IN = 6 cm, LG = 8.5 cm
D) KI = 5 cm, IN = 6 cm, IG = 13 cm
Answer:
D) KI = 5 cm, IN = 6 cm, IG = 13 cm
Question 3.
If only one side is given, then you can construct _________ .
A) square
B) rhombus
C) kite
D) parallelogram
Answer:
A) square
Question 4.
In which of the following cases, a unique quadrilateral can be constructed?
A) 3 sides and 2 included angle are given
B) 2 diagonals and 3 sides are given
C) 4 sides and 1 diagonal are given
D) all the above cases
Answer:
D) all the above cases
Question 5.
If two adjacent sides, and angle between them are given, then _________ can be constructed.
A) parallelogram
B) rhobmus
C) trapezium
D) none
Answer:
A) parallelogram
Question 6.
If two diagonals and three differetnt sides are given, then _________ can be constructed.
A) a quadrilateral
B) rhombus
C) parallelogram
D) rectangle
Answer:
A) a quadrilateral
Question 7.
A polygon will always have _________ .
A) curves
B) curves and lines
C) line segments only
D) any of the above
Answer:
C) line segments only
Question 8.
ABCD is a rhombus and \(\overline{\mathbf{A C}}\) is given, to construct ABCD _________ is also
to be given.
A) AB
B) BD
C) (A) or (B)
D) ‘A’ and ‘B’
Answer:
C) (A) or (B)
Question 9.
Diagonal of a rhombus is 5 cm. Then its side will be _________
A) always less than 2.5 cm
B) always greater than 2.5 cm
C) equal to 5 cm
D) not sure of above
Answer:
A) always less than 2.5 cm
Question 10.
Number of diagonals in a regular hexagon is _________ .
A) 5
B) 6
C) 9
D) 10
Answer:
C) 9
Question 11.
Diagonals of a rectangle are always _________ .
A) in equal
B) equal
C) depends on other measurements
D) none of the above
Answer:
B) equal
Question 12.
Side of Rhombus is 5 cm and if one diagonal is 6 cm, then other diagonal will be _________ cm.
A) 4
B) 6
C) 5
D) 8
Answer:
D) 8
Question 13.
ABCD is a square, and \(\overline{\mathbf{A C}}\), \(\overline{\mathbf{B D}}\) intersects at ‘O’, then ∠AOB = _________ .
A) 90°
B) 60°
C) 45°
D) 120°
Answer:
A) 90°
Question 14.
Which of the following is a regular quadrilateral?
A) Trapezium
B) Parallelogram
C) Square
D) Rhombus
Answer:
C) Square
Question 15.
________ is a parallelogram in which adjacent sides are equal.
A) Square
B) Rhombus
C) Rectangle
D) None
Answer:
B) Rhombus
Question 16.
Opposite sides are parallel in __________ .
A) Rhombus
B) Parallelogram
C) Square
D) All the above
Answer:
D) All the above
Question 17.
Opposite angles are equal in ___________ .
A) Rhombus
B) Parallelogram
C) Square
D) All the above
Answer:
D) All the above
Question 18.
Consecutive angles are supplementary. This feature is present in _________
A) parallelogram
B) square
C) rectangle
D) all the above
Answer:
A) parallelogram
Question 19.
Which of the following are true ?
p) All squares are rhombus
q) All squares are rectangles
r) All rectangles are squares
s) All parallelograms are squares
t) All rectangles are parallelograms
A) p, r, t
B) p, r, s, t
C) p, q, t
D) p, q, r, s, t
Answer:
C) p, q, t
Question 20.
Which of the following statement are true ?
A) Diagonals of a square are equal
B) Diagonals of a rectangle are equal
C) Diagonals of a rhombus are in equal
D) All the above
Answer:
D) All the above
For questions from 21 to 24 options are same as follows. Pick the correct option.
A) Both ‘A’ and ‘R’ are true and ‘R’ is correct explanation of ‘A’.
B) Both ‘A’ and ‘R’ are true but ‘R’ is not correct explanation of ‘A’.
C) ‘A’ is true but ‘R’ is false.
D) ‘A’ is false but ‘R’ is true.
Question 21.
Assertion (A) : The value of (x) in the , following figure is 50°
Reason (R) : From the angle sum property of quadrilaterals, sum of all 4 interior angles is 360°
Answer:
D) ‘A’ is false but ‘R’ is true.
Question 22.
Assertion (A) : If three sides and two diagonals are given, then any polygon can be constructed.
Reason (R) : A closed polygon is a plane figure that is surrounded by a finite number of line segments whose diagonals lie in its interior.
Answer:
D) ‘A’ is false but ‘R’ is true.
Question 23.
Assertion (A) : If the number of sides of a regular polygon is 20, then the each exterior angle will be 18°.
Reason (R) : Sum of all exterior angles of any polygon is 360° and they are equal in each.
Answer:
A) Both ‘A’ and ‘R’ are true and ‘R’ is correct explanation of ‘A’.
Question 24.
Assertion (A) : A heptagon have 14 diagonals.
Reason (R) : Formula for diagonals of a n(n – 3) polygon is \(\frac{\mathrm{n}(\mathrm{n}-3)}{2}\).
Answer:
A) Both ‘A’ and ‘R’ are true and ‘R’ is correct explanation of ‘A’.
Question 25.
A line segment connecting two adjacent vertices is called _______ .
A) line segment
B) diagonal
C) side
D) polygon
Answer:
C) side
Question 26.
A line segment connecting two opposite (non-adjacent) vertices is called ________
A) line segment
B) diagonal
C) side
D) polygon
Answer:
B) diagonal
Question 27.
Find perimeter of parallelogram ABCD.
A) 16
B) 32
C) 9
D) 18
Answer:
D) 18
Question 28.
In which of the following number of diagonals will be zero ?
A) square
B) triangle
C) parallelogram
D) pentagon
Answer:
B) triangle
Question 29.
Sum of interior angles of a regular pentagon is _______ .
A) 540°
B) 480°
C) 360°
D) 180°
Answer:
A) 540°
Question 30.
Each of interior angle of a regular polygon is 120°, then the number of sides in it is _________ .
A) 8
B) 7
C) 6
D) 9
Answer:
C) 6