EduSahara™ Assignment
Name : Polygons
Chapter : Polygons
Grade : ICSE Grade IX
License : Non Commercial Use
Question 1
1.
Identify the figure below
  • (i)
    pentagon
  • (ii)
    circle
  • (iii)
    nonagon
  • (iv)
    triangle
  • (v)
    octagon
Question 2
2.
Identify the figure below
  • (i)
    triangle
  • (ii)
    octagon
  • (iii)
    nonagon
  • (iv)
    heptagon
  • (v)
    quadrilateral
Question 3
3.
Identify the figure below
  • (i)
    triangle
  • (ii)
    hexagon
  • (iii)
    heptagon
  • (iv)
    circle
  • (v)
    decagon
Question 4
4.
Identify the figure below
  • (i)
    rhombus
  • (ii)
    rectangle
  • (iii)
    kite
  • (iv)
    parallelogram
  • (v)
    trapezium
Question 5
5.
Identify the figure below
  • (i)
    circle
  • (ii)
    rectangle
  • (iii)
    trapezium
  • (iv)
    parallelogram
  • (v)
    kite
Question 6
6.
Identify the figure below
  • (i)
    kite
  • (ii)
    rhombus
  • (iii)
    rectangle
  • (iv)
    angle
  • (v)
    trapezium
Question 7
7.
Identify the figure below
  • (i)
    quadrilateral
  • (ii)
    triangle
  • (iii)
    rhombus
  • (iv)
    trapezium
  • (v)
    square
Question 8
8.
Identify the figure below
  • (i)
    triangle
  • (ii)
    rhombus
  • (iii)
    rectangle
  • (iv)
    kite
  • (v)
    trapezium
Question 9
9.
Identify the figure below
  • (i)
    kite
  • (ii)
    rhombus
  • (iii)
    circle
  • (iv)
    rectangle
  • (v)
    angle
Question 10
10.
Identify the figure below
  • (i)
    octagon
  • (ii)
    nonagon
  • (iii)
    pentagon
  • (iv)
    heptagon
  • (v)
    hexagon
Question 11
11.
Identify the figure below
  • (i)
    angle
  • (ii)
    decagon
  • (iii)
    nonagon
  • (iv)
    hexagon
  • (v)
    pentagon
Question 12
12.
Identify the figure below
  • (i)
    quadrilateral
  • (ii)
    hexagon
  • (iii)
    heptagon
  • (iv)
    pentagon
  • (v)
    nonagon
Question 13
13.
Identify the figure below
  • (i)
    hexagon
  • (ii)
    heptagon
  • (iii)
    decagon
  • (iv)
    circle
  • (v)
    octagon
Question 14
14.
Identify the figure below
  • (i)
    heptagon
  • (ii)
    quadrilateral
  • (iii)
    angle
  • (iv)
    pentagon
  • (v)
    nonagon
Question 15
15.
Identify the figure below
  • (i)
    angle
  • (ii)
    decagon
  • (iii)
    circle
  • (iv)
    nonagon
  • (v)
    pentagon
Question 16
16.
In the given two equilateral triangles, find ∠L + ∠N + ∠P + ∠M + ∠O + ∠Q .
  • (i)
    359°
  • (ii)
    360°
  • (iii)
    362°
  • (iv)
    361°
  • (v)
    358°
Question 17
17.
The angles of a quadrilateral MNOP are in the ratio 12 : 15 : 4 : 29. Find the measure of each angle of the quadrilateral.
  • (i)
    M
    =
    71°
    ,
    N
    =
    88°
    ,
    O
    =
    25°
    ,
    P
    =
    176°
  • (ii)
    M
    =
    73°
    ,
    N
    =
    89°
    ,
    O
    =
    26°
    ,
    P
    =
    172°
  • (iii)
    M
    =
    72°
    ,
    N
    =
    90°
    ,
    O
    =
    24°
    ,
    P
    =
    174°
  • (iv)
    M
    =
    74°
    ,
    N
    =
    89°
    ,
    O
    =
    22°
    ,
    P
    =
    175°
  • (v)
    M
    =
    70°
    ,
    N
    =
    92°
    ,
    O
    =
    23°
    ,
    P
    =
    175°
Question 18
18.
Two adjacent angles of a parallelogram BCDE are in the ratio 36 : 54. Find the measure of each of its angles.
  • (i)
    B
    =
    70°
    ,
    C
    =
    110°
    ,
    D
    =
    71°
    ,
    E
    =
    109°
  • (ii)
    B
    =
    71°
    ,
    C
    =
    106°
    ,
    D
    =
    73°
    ,
    E
    =
    110°
  • (iii)
    B
    =
    72°
    ,
    C
    =
    108°
    ,
    D
    =
    72°
    ,
    E
    =
    108°
  • (iv)
    B
    =
    73°
    ,
    C
    =
    107°
    ,
    D
    =
    74°
    ,
    E
    =
    106°
  • (v)
    B
    =
    74°
    ,
    C
    =
    107°
    ,
    D
    =
    70°
    ,
    E
    =
    109°
Question 19
19.
Three angles of quadrilateral measure 124.07°, 92.12° and 96.65° respectively. Find the measure of the fourth angle
  • (i)
    48.16°
  • (ii)
    46.16°
  • (iii)
    49.16°
  • (iv)
    45.16°
  • (v)
    47.16°
Question 20
20.
Three angles of a quadrilateral are equal and the fourth angle measure 48.74°. What is the measure of each of the equal angles?
  • (i)
    105.75°
  • (ii)
    104.75°
  • (iii)
    101.75°
  • (iv)
    103.75°
  • (v)
    102.75°
Question 21
21.
Which of the following figures is a regular quadrilateral?
  • (i)
    parallelogram
  • (ii)
    square
  • (iii)
    trapezium
  • (iv)
    rectangle
  • (v)
    rhombus
Question 22
22.
Sum of the interior angles in a triangle is
  • (i)
    195°
  • (ii)
    210°
  • (iii)
    190°
  • (iv)
    180°
  • (v)
    185°
Question 23
23.
Sum of the interior angles in a quadrilateral is
  • (i)
    365°
  • (ii)
    375°
  • (iii)
    360°
  • (iv)
    390°
  • (v)
    370°
Question 24
24.
Sum of the interior angles in a pentagon is
  • (i)
    545°
  • (ii)
    555°
  • (iii)
    570°
  • (iv)
    550°
  • (v)
    540°
Question 25
25.
Sum of the interior angles in a hexagon is
  • (i)
    750°
  • (ii)
    720°
  • (iii)
    725°
  • (iv)
    735°
  • (v)
    730°
Question 26
26.
Sum of the interior angles in a heptagon is
  • (i)
    900°
  • (ii)
    910°
  • (iii)
    915°
  • (iv)
    905°
  • (v)
    930°
Question 27
27.
Sum of the interior angles in an octagon is
  • (i)
    1085°
  • (ii)
    1110°
  • (iii)
    1080°
  • (iv)
    1095°
  • (v)
    1090°
Question 28
28.
Sum of the interior angles in a nonagon is
  • (i)
    1275°
  • (ii)
    1270°
  • (iii)
    1265°
  • (iv)
    1260°
  • (v)
    1290°
Question 29
29.
Sum of the interior angles in a decagon is
  • (i)
    1445°
  • (ii)
    1440°
  • (iii)
    1450°
  • (iv)
    1455°
  • (v)
    1470°
Question 30
30.
How many diagonals does a triangle have?
  • (i)
    0
  • (ii)
    1
  • (iii)
    4
  • (iv)
    3
  • (v)
    2
Question 31
31.
How many diagonals does a quadrilateral have?
  • (i)
    3
  • (ii)
    1
  • (iii)
    0
  • (iv)
    2
  • (v)
    4
Question 32
32.
How many diagonals does a pentagon have?
  • (i)
    6
  • (ii)
    3
  • (iii)
    8
  • (iv)
    5
  • (v)
    4
Question 33
33.
How many diagonals does a hexagon have?
  • (i)
    9
  • (ii)
    10
  • (iii)
    6
  • (iv)
    8
  • (v)
    12
Question 34
34.
How many diagonals does a heptagon have?
  • (i)
    12
  • (ii)
    15
  • (iii)
    13
  • (iv)
    14
  • (v)
    16
Question 35
35.
How many diagonals does an octagon have?
  • (i)
    22
  • (ii)
    19
  • (iii)
    20
  • (iv)
    21
  • (v)
    17
Question 36
36.
How many diagonals does a nonagon have?
  • (i)
    30
  • (ii)
    28
  • (iii)
    24
  • (iv)
    26
  • (v)
    27
Question 37
37.
How many diagonals does a decagon have?
  • (i)
    36
  • (ii)
    35
  • (iii)
    34
  • (iv)
    32
  • (v)
    37
Question 38
38.
    • Find the number of sides in a regular polygon if each
    • interior
    • angle is
    • 174°
  • (i)
    57
  • (ii)
    60
  • (iii)
    59
  • (iv)
    61
  • (v)
    62
Question 39
39.
    • Find the number of sides in a regular polygon if each
    • exterior
    • angle is
  • (i)
    75
  • (ii)
    73
  • (iii)
    70
  • (iv)
    72
  • (v)
    71
Question 40
40.
The number of diagonals in a regular polygon with n sides is
  • (i)
    (
    n
    ) (
    n
    +
    2
    )

    2
  • (ii)
    (
    n
    ) (
    n
    3
    )

    2
  • (iii)
    (
    n
    ) (
    n
    +
    3
    )

    2
  • (iv)
    (
    n
    ) (
    n
    1
    )

    2
  • (v)
    (
    n
    ) (
    n
    2
    )

    2
Question 41
41.
The value of each exterior angle in an n-sided regular polygon is
  • (i)
    (
    360

    n
    ) °
  • (ii)
    (
    n

    360
    ) °
  • (iii)
    [
    (2n - 4) x 90

    n
    ] °
  • (iv)
    [
    (2n - 4) x 180

    n
    ] °
Question 42
42.
The value of each interior angle in an n-sided regular polygon is
  • (i)
    [
    (2n - 4) x 180

    n
    ] °
  • (ii)
    (
    n

    360
    ) °
  • (iii)
    (
    360

    n
    ) °
  • (iv)
    [
    (2n - 4) x 90

    n
    ] °
Question 43
43.
The value of the exterior angle in a regular polygon when the interior angle is given
  • (i)
    180°- (interior angle)
  • (ii)
    90°+ (interior angle)
  • (iii)
    360°- (interior angle)
  • (iv)
    180°+ (interior angle)
Question 44
44.
The value of the interior angle in a regular polygon when the exterior angle is given
  • (i)
    180°+ (exterior angle)
  • (ii)
    180°- (exterior angle)
  • (iii)
    360°- (exterior angle)
  • (iv)
    90°+ (exterior angle)
    Assignment Key

  •  1) (iv)
  •  2) (v)
  •  3) (iv)
  •  4) (v)
  •  5) (iv)
  •  6) (iii)
  •  7) (v)
  •  8) (ii)
  •  9) (i)
  •  10) (iii)
  •  11) (iv)
  •  12) (iii)
  •  13) (v)
  •  14) (v)
  •  15) (ii)
  •  16) (ii)
  •  17) (iii)
  •  18) (iii)
  •  19) (v)
  •  20) (iv)
  •  21) (ii)
  •  22) (iv)
  •  23) (iii)
  •  24) (v)
  •  25) (ii)
  •  26) (i)
  •  27) (iii)
  •  28) (iv)
  •  29) (ii)
  •  30) (i)
  •  31) (iv)
  •  32) (iv)
  •  33) (i)
  •  34) (iv)
  •  35) (iii)
  •  36) (v)
  •  37) (ii)
  •  38) (ii)
  •  39) (iv)
  •  40) (ii)
  •  41) (i)
  •  42) (iv)
  •  43) (i)
  •  44) (ii)