Class 8 Understanding Quadrilaterals CBSE Questions & Answers

Class 8 · Understanding Quadrilaterals

This is Mathematics Class 8 Understanding Quadrilaterals CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
How many diagonals does a regular have?
  • A
    none of these
  • B
    8
  • C
    9
    Correct
  • D
    7
2
State the name of a regular polygon of 6 sides.
  • A
    hexagon
    Correct
  • B
    heptagon
  • C
    none of these
  • D
    pentagon
3
Find the angle measure x in the following figure:
Question 3 figure 1
  • A
    140\(^\circ \)
    Correct
  • B
    45\(^\circ \)
  • C
    none of these
  • D
    120\(^\circ \)
4
Find the measure of each exterior angle of a regular polygon of 9 sides.
  • A
    30\(^\circ \)
  • B
    60\(^\circ \)
  • C
    40\(^\circ \)
    Correct
  • D
    90\(^\circ \)
5
Given a parallelogram ABCD. \(\angle \)DCB = ....
Question 5 figure 1
  • A
    \(\angle \)CDA
  • B
    \(\angle \)DAB
    Correct
  • C
    none of these
  • D
    \(\angle \)CBA
6
A simple closed curve made up of only line segments is called a ________.
  • A
    hexagon
  • B
    none of these
  • C
    quadrilateral
  • D
    polygon
    Correct
7
A _______ is both ‘equiangular’ and ‘equilateral’.
  • A
    regular polygon
    Correct
  • B
    none of these
  • C
    triangle
  • D
    quadrilateral
8
A _________ is a quadrilateral whose opposite sides are parallel.
  • A
    quadrilateral
  • B
    none of these
  • C
    parallelogram
    Correct
  • D
    rhombus
9
A _________ has all the properties of a parallelogram and also that of a kite.
  • A
    parallelogram
  • B
    quadrilateral
  • C
    none of these
  • D
    rhombus
    Correct
10
Find the value of the unknown x.
Question 10 figure 1
  • A
    80\(^\circ \)
    Correct
  • B
    100\(^\circ \)
  • C
    120\(^\circ \)
  • D
    none of these
11
Find the value of the unknown y.
Question 11 figure 1
  • A
    none of these
  • B
    80\(^\circ \)
  • C
    100\(^\circ \)
    Correct
  • D
    40\(^\circ \)
12
Find the value of the unknown z.
Question 12 figure 1
  • A
    none of these
  • B
    40\(^\circ \)
  • C
    100\(^\circ \)
  • D
    80\(^\circ \)
    Correct
13
RENT is a rectangle. Its diagonals meet at O. Find x, if OR = 2x + 4 and OT = 3x + 1.
Question 13 figure 1
  • A
    4
  • B
    3
    Correct
  • C
    none of these
  • D
    5
14
How many diagonals does a triangle have?
  • A
    0
    Correct
  • B
    1
  • C
    None of these
  • D
    2
15
Find the angle measure x in the following figure:
Question 15 figure 1
  • A
    108\(^\circ \)
    Correct
  • B
    none of these
  • C
    120\(^\circ \)
  • D
    90\(^\circ \)