ICSE Board Practice

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ICSE Grade IX - Polygons
Question 1
1.
Identify the figure below
  • pentagon
  • quadrilateral
  • nonagon
  • hexagon
  • triangle
Question 2
2.
Identify the figure below
  • pentagon
  • octagon
  • triangle
  • hexagon
  • decagon
Question 3
3.
    • Find the number of sides in a regular polygon if each
    • interior
    • angle is
    • 171°
  • 38
  • 39
  • 41
  • 43
  • 40
Question 4
4.
Identify the figure below
  • quadrilateral
  • decagon
  • triangle
  • nonagon
  • heptagon
Question 5
5.
Identify the figure below
  • rhombus
  • rectangle
  • parallelogram
  • square
  • kite
Question 6
6.
Two adjacent angles of a parallelogram BCDE are in the ratio 2 : 10. Find the measure of each of its angles.
  • B
    =
    29°
    ,
    C
    =
    148°
    ,
    D
    =
    31°
    ,
    E
    =
    152°
  • B
    =
    30°
    ,
    C
    =
    150°
    ,
    D
    =
    30°
    ,
    E
    =
    150°
  • B
    =
    31°
    ,
    C
    =
    149°
    ,
    D
    =
    32°
    ,
    E
    =
    148°
  • B
    =
    28°
    ,
    C
    =
    152°
    ,
    D
    =
    29°
    ,
    E
    =
    151°
  • B
    =
    32°
    ,
    C
    =
    149°
    ,
    D
    =
    28°
    ,
    E
    =
    151°
Question 7
7.
Three angles of a quadrilateral are equal and the fourth angle measure 59.17°. What is the measure of each of the equal angles?
  • 102.28°
  • 100.28°
  • 101.28°
  • 99.28°
  • 98.28°
Question 8
8.
The value of the interior angle in a regular polygon when the exterior angle is given
  • 360°- (exterior angle)
  • 180°+ (exterior angle)
  • 90°+ (exterior angle)
  • 180°- (exterior angle)
Question 9
9.
How many diagonals does a pentagon have?
  • 6
  • 7
  • 4
  • 5
  • 2
Question 10
10.
Sum of the interior angles in a pentagon is
  • 555°
  • 550°
  • 570°
  • 545°
  • 540°