ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Polygons
Question 1
1.
The value of the exterior angle in a regular polygon when the interior angle is given
  • 180°+ (interior angle)
  • 360°- (interior angle)
  • 180°- (interior angle)
  • 90°+ (interior angle)
Question 2
2.
The value of the interior angle in a regular polygon when the exterior angle is given
  • 360°- (exterior angle)
  • 180°+ (exterior angle)
  • 180°- (exterior angle)
  • 90°+ (exterior angle)
Question 3
3.
Sum of the interior angles in a hexagon is
  • 730°
  • 725°
  • 750°
  • 735°
  • 720°
Question 4
4.
    • Find the number of sides in a regular polygon if each
    • interior
    • angle is
    • 150°
  • 9
  • 15
  • 13
  • 11
  • 12
Question 5
5.
    • Find the number of sides in a regular polygon if each
    • exterior
    • angle is
    • 6°
  • 57
  • 61
  • 63
  • 59
  • 60
Question 6
6.
How many sides does a decagon have?
  • 10
  • 8
  • 9
  • 12
  • 11
Question 7
7.
How many diagonals does a triangle have?
  • 2
  • 4
  • 0
  • 3
  • 1
Question 8
8.
A polygon with 4 sides is called a
  • quadrilateral
  • hexagon
  • heptagon
  • nonagon
  • octagon
Question 9
9.
Sum of the interior angles in a nonagon is
  • 1260°
  • 1290°
  • 1270°
  • 1265°
  • 1275°
Question 10
10.
How many diagonals does an octagon have?
  • 21
  • 18
  • 22
  • 20
  • 19