EduSahara™ Worksheet

Question 1

1.

In the given triangle S is the circumcentre. If SB = 12.90 cm, find the circumference of the circumcircle

(i)

79.1 cm
(ii)

81.1 cm
(iii)

83.1 cm
(iv)

80.1 cm
(v)

82.1 cm

Question 2

2.

Find the side of the square in the following figure if the radius of the circle is 11.00 cm.

(i)

17.55 cm
(ii)

13.55 cm
(iii)

16.55 cm
(iv)

14.55 cm
(v)

15.55 cm

Question 3

3.

If a chord JK = 13 cm is drawn in a circle with radius OJ = 11 cm, find its distance from the centre of the circle

(i)

9.87 cm
(ii)

7.87 cm
(iii)

10.87 cm
(iv)

6.87 cm
(v)

8.87 cm

Question 4

4.

The diameter IJ of a circle with centre 'O' is perpendicular to the chord GH. If GH = 26.00 cm and IK = 7.26 cm, find the radius of the circle.

(i)

16.26 cm
(ii)

15.26 cm
(iii)

13.26 cm
(iv)

17.26 cm
(v)

14.26 cm

Question 5

5.

Which of the following statements are true?

a)	The radius is the shortest chord.
b)	A chord divides a circle into two sectors.
c)	The diameter is the longest chord.
d)	Atmost one chord can be drawn on a circle with a certain length.
e)	A chord divides a circle into two segments.

(i)

{d,a,c}
(ii)

{c,e}
(iii)

{b,e}
(iv)

{a,c}
(v)

{b,e,c}

Question 6

6.

Which of the following statements are true?

a)	Equal length chords subtend equal angles at the centre of the circle.
b)	The longest chord of the circle passes through the centre of the circle.
c)	The farther the chord is from the centre, the larger the angle it subtends at the centre.
d)	Equal length chords are equidistant from the centre of the circle.
e)	No two chords bisects each other.

(i)

{c,a}
(ii)

{a,b,d}
(iii)

{e,b}
(iv)

{c,e,d}
(v)

{c,a,b}

Question 7

7.

Which of the following statements are true?

a)	A circle divides the plane on which it lies into three parts.
b)	The area enclosed by a chord and its major arc is called major segment.
c)	The diameter divides the circle into two unequal parts.
d)	The area enclosed by a chord and its minor arc is called minor segment.
e)	A sector is the area enclosed by two radii and a chord.

(i)

{c,a,b}
(ii)

{c,a}
(iii)

{e,b}
(iv)

{a,b,d}
(v)

{c,e,d}

Question 8

8.

Which of the following statements are true?

a)	The longest of all chords of a circle is called diameter.
b)	The diameter divides the circle into two unequal parts.
c)	The midpoint of any diameter of a circle is its centre.
d)	A sector is the area enclosed by two radii and a chord.
e)	Two chords bisect each other.

(i)

{d,c}
(ii)

{d,c,a}
(iii)

{a,c}
(iv)

{b,a}
(v)

{e,b,a}

Question 9

9.

FG , HI , JK , LM are chords of a circle with FG = 6 cm , HI = 4 cm , JK = 5.1 cm and LM = 4.08 cm. The chord farthest from the centre of the circle is

(i)

HI = 4 cm
(ii)

FG = 6 cm
(iii)

LM = 4.08 cm
(iv)

JK = 5.1 cm

Question 10

10.

In the given figure, D and E are centres of two circles with equal radii intersecting at F and G. If DE = 20 cm and FG = 17.2 cm, find the radii of the circles

(i)

11.19 cm
(ii)

15.19 cm
(iii)

14.19 cm
(iv)

13.19 cm
(v)

12.19 cm

Question 11

11.

In the given figure, two circles of radii GI = 10.1 cm & HI = 13.5 cm intersect at I & J. The distance between the centres GH = 20 cm, find the length of IJ