ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade X - Circumference and Area of a Circle
Question 1
1.
In the given figure, arcs of two concentric circles of radii 11.00 cm and 4.40 cm are drawn with center O. If ∠BOC = 90°, find the area of the shaded region
  • 84.86 sq.cm
  • 79.86 sq.cm
  • 74.86 sq.cm
  • 82.86 sq.cm
  • 76.86 sq.cm
Question 2
2.
If the width of the ring is 1.00 cm and inner radius is 9.00 cm, the inner circle area is
  • 228.57 sq.cm
  • 270.57 sq.cm
  • 254.57 sq.cm
  • 256.57 sq.cm
  • 251.57 sq.cm
Question 3
3.
In the given figure , ABCD is a trapezium. A quarter circle AEFD is removed from the trapezium. If AD = CD = 11 and EB = 2.2 , find the area of the remaining portion
  • 43.03 sq.cm
  • 41.03 sq.cm
  • 33.03 sq.cm
  • 38.03 sq.cm
  • 35.03 sq.cm
Question 4
4.
If area of the circle is 154.00 sq.cm, the circumference of the circle is
  • 39.00 cm
  • 41.00 cm
  • 47.00 cm
  • 49.00 cm
  • 44.00 cm
Question 5
5.
If the radius of a circle is 15.00 cm and the perimeter of a sector is 46.24 cm, the length of the arc of the sector is
  • 21.24 cm
  • 11.24 cm
  • 19.24 cm
  • 16.24 cm
  • 13.24 cm
Question 6
6.
If the area of a sector of a circle is 196.11 sq.cm and the length of the arc of the sector is 32.69 cm, the perimeter of the circle is
  • 75.43 cm
  • 72.43 cm
  • 70.43 cm
  • 78.43 cm
  • 80.43 cm
Question 7
7.
If the inner and outer radii of a ring are 5.00 cm and 10.00 cm respectively, the width of the ring is
  • 3.00 cm
  • 5.00 cm
  • 4.00 cm
  • 6.00 cm
  • 7.00 cm
Question 8
8.
If the length of the arc of a sector is 17.02 cm and the perimeter of the circle is 81.71 cm, the angle subtended at the center by the arc of the sector is
  • 80.00°
  • 75.00°
  • 78.00°
  • 72.00°
  • 70.00°
Question 9
9.
If the area of a sector of a circle is 89.05 sq.cm and the area of the circle is 314.29 sq.cm, the radius of the circle is
  • 7.00 cm
  • 5.00 cm
  • 10.00 cm
  • 13.00 cm
  • 15.00 cm
Question 10
10.
If the area of a sector of a circle is 109.13 sq.cm and the angle subtended at the center by the arc of the sector is 125.00°, the radius of the circle is
  • 15.00 cm
  • 10.00 cm
  • 7.00 cm
  • 5.00 cm
  • 13.00 cm