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 convex quadrilateral have?
  • A
    none of these
  • B
    4
  • C
    3
  • D
    2
    Correct
2
State the name of a regular polygon of 5 sides.
  • A
    pentagon
    Correct
  • B
    hexagon
  • C
    heptagon
  • D
    quadrilateral
3
Find the angle measure x in the following figure:
Question 3 figure 1
  • A
    \({\text{6}}{0^0}\)
    Correct
  • B
    \({\text{9}}{0^0}\)
  • C
    \({\text{3}}{0^0}\)
  • D
    \({\text{4}}{{\text{5}}^{\text{0}}}\)
4
Find the number of sides of a regular polygon whose each exterior angle has a measure of \({\text{4}}{{\text{5}}^{\text{0}}}\)
  • A
    4
  • B
    3
  • C
    8
    Correct
  • D
    6
5
Given a parallelogram ABCD. AD = ......
Question 5 figure 1
  • A
    BC
    Correct
  • B
    AB
  • C
    none of these
  • D
    CD
6
The paper is a model for a ___________.
  • A
    plane surface
    Correct
  • B
    circle
  • C
    none of these
  • D
    border
7
The sum of the measures of the three angles of a triangle is ______.
  • A
    none of these
  • B
    360\(^\circ \)
  • C
    180\(^\circ \)
    Correct
  • D
    210\(^\circ \)
8
The opposite sides of a parallelogram are of ________ length.
  • A
    not equal
  • B
    different
  • C
    equal
    Correct
  • D
    none of these
9
The ________ of a rhombus are perpendicular bisectors of one another.
  • A
    sides
  • B
    diagonals
    Correct
  • C
    angles
  • D
    none of these
10
Find the value of the unknown x.
Question 10 figure 1
  • A
    130\(^\circ \)
    Correct
  • B
    none of these
  • C
    150\(^\circ \)
  • D
    180\(^\circ \)
11
Find the value of the unknown y.
Question 11 figure 1
  • A
    none of these
  • B
    150\(^\circ \)
  • C
    180\(^\circ \)
  • D
    130\(^\circ \)
    Correct
12
Find the value of the unknown z.
Question 12 figure 1
  • A
    150\(^\circ \)
  • B
    180\(^\circ \)
  • C
    130\(^\circ \)
    Correct
  • D
    none of these
13
RICE is a rhombus. Find x.
Question 13 figure 1
  • A
    12
  • B
    5
    Correct
  • C
    13
  • D
    none of these
14
RICE is a rhombus. Find y.
Question 14 figure 1
  • A
    13
  • B
    12
    Correct
  • C
    none of these
  • D
    5
15
RICE is a rhombus. Find z.
Question 15 figure 1
  • A
    5
  • B
    12
  • C
    none of these
  • D
    13
    Correct