ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Polygons
Question 1
1.
The number of diagonals in a regular polygon with n sides is
  • (
    n
    		) (
    n
    −
    3
    		)
    2
  • (
    n
    		) (
    n
    −
    1
    		)
    2
  • (
    n
    		) (
    n
    −
    2
    		)
    2
  • (
    n
    		) (
    n
    +
    2
    		)
    2
  • (
    n
    		) (
    n
    +
    3
    		)
    2
Question 2
2.
How many sides does a nonagon have?
  • 6
  • 10
  • 8
  • 11
  • 9
Question 3
3.
How many diagonals does a hexagon have?
  • 10
  • 9
  • 7
  • 8
  • 12
Question 4
4.
Identify the figure below
  • quadrilateral
  • heptagon
  • circle
  • octagon
  • pentagon
Question 5
5.
How many diagonals does a decagon have?
  • 33
  • 38
  • 34
  • 35
  • 36
Question 6
6.
A polygon with 8 sides is called an
  • pentagon
  • hexagon
  • octagon
  • nonagon
  • heptagon
Question 7
7.
The value of each interior angle in an n-sided regular polygon is
  • (
    n
    360
    		 ) °
  • [
    (2n - 4) x 90
    n
    		 ] °
  • (
    360
    n
    		 ) °
  • [
    (2n - 4) x 180
    n
    		 ] °
Question 8
8.
How many sides does a heptagon have?
  • 5
  • 8
  • 7
  • 6
  • 9
Question 9
9.
The value of the interior angle in a regular polygon when the exterior angle is given
  • 180°+ (exterior angle)
  • 90°+ (exterior angle)
  • 360°- (exterior angle)
  • 180°- (exterior angle)
Question 10
10.
Sum of the interior angles in a heptagon is
  • 930°
  • 910°
  • 900°
  • 915°
  • 905°