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 sides does a regular polygon have if each of its interior angles is 165\(^\circ \)?
  • A
    12
  • B
    36
  • C
    24
    Correct
  • D
    none of these
2
Given a parallelogram ABCD. OB = ......
Question 2 figure 1
  • A
    none of these
  • B
    OC
  • C
    OA
  • D
    OD
    Correct
3
Polygons that are _____ have no portions of their diagonals in their exteriors.
  • A
    regular
  • B
    convex
    Correct
  • C
    none of these
  • D
    concave
4
________ is a quadrilateral with a pair of parallel sides.
  • A
    rectangle
  • B
    rhombus
  • C
    Trapezium
    Correct
  • D
    none of these
5
The _________ of a parallelogram bisect each other.
  • A
    angles
  • B
    sides
  • C
    diagonals
    Correct
  • D
    none of these
6
The diagonals of a _________ are perpendicular bisectors of each other.
  • A
    none of these
  • B
    trapezium
  • C
    rhombus
  • D
    square
    Correct
7
Find the value of the unknown x.
Question 7 figure 1
  • A
    112\(^\circ \)
  • B
    35\(^\circ \)
  • C
    28\(^\circ \)
    Correct
  • D
    none of these
8
Find the value of the unknown y.
Question 8 figure 1
  • A
    35\(^\circ \)
  • B
    112\(^\circ \)
    Correct
  • C
    28\(^\circ \)
  • D
    none of these
9
Find the value of the unknown z.
Question 9 figure 1
  • A
    28\(^\circ \)
    Correct
  • B
    40\(^\circ \)
  • C
    112\(^\circ \)
  • D
    none of these
10
In following figure, HELP is a parallelogram. (Lengths are in cms). Given that OE = 4 and HL is 5 more than PE? Find OH.
Question 10 figure 1
  • A
    8.5 cm
  • B
    6.5 cm
    Correct
  • C
    none of these
  • D
    10.5 cm
11
State the name of a regular polygon of 7 sides.
  • A
    heptagon
    Correct
  • B
    hexagon
  • C
    none of these
  • D
    pentagon
12
State the name of a regular polygon of 8 sides.
  • A
    none of these
  • B
    heptagon
  • C
    octagon
    Correct
  • D
    hexagon
13
State the name of a regular polygon of 9 sides.
  • A
    nonagon
    Correct
  • B
    heptagon
  • C
    none of these
  • D
    octagon
14
State the name of a regular polygon of 10 sides.
  • A
    octagon
  • B
    decagon
    Correct
  • C
    heptagon
  • D
    nonagon
15
Find the number of sides of a regular polygon whose each exterior angle has a measure of 30\(^\circ \).
  • A
    14
  • B
    13
  • C
    15
  • D
    12
    Correct