ICSE Board Practice

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ICSE Grade IX - Polygons
Question 1
1.
Sum of the interior angles in a heptagon is
  • 930°
  • 900°
  • 910°
  • 915°
  • 905°
Question 2
2.
Sum of the interior angles in a decagon is
  • 1445°
  • 1450°
  • 1455°
  • 1440°
  • 1470°
Question 3
3.
The value of each exterior angle in an n-sided regular polygon is
  • (
    n
    360
    		 ) °
  • [
    (2n - 4) x 90
    n
    		 ] °
  • (
    360
    n
    		 ) °
  • [
    (2n - 4) x 180
    n
    		 ] °
Question 4
4.
    • Find the number of sides in a regular polygon if each
    • interior
    • angle is
    • 140°
  • 8
  • 7
  • 9
  • 10
  • 11
Question 5
5.
Identify the figure below
  • parallelogram
  • circle
  • triangle
  • rhombus
  • trapezium
Question 6
6.
How many diagonals does a heptagon have?
  • 15
  • 12
  • 14
  • 13
  • 17
Question 7
7.
How many diagonals does a quadrilateral have?
  • 1
  • 2
  • 0
  • 3
  • 4
Question 8
8.
Identify the figure below
  • triangle
  • decagon
  • pentagon
  • nonagon
  • hexagon
Question 9
9.
Sum of the interior angles in a nonagon is
  • 1265°
  • 1290°
  • 1260°
  • 1270°
  • 1275°
Question 10
10.
Identify the figure below
  • rhombus
  • angle
  • triangle
  • parallelogram
  • circle