Find the area of  a quadrant of a circle whose circumference is 22cm.

2

(a)

The length of the minute hand of a clock is 14 cm.  Find the area swept by the minute hand in 5 minutes.

2

(a)

Find the area of \(\Delta\)PQR such that \(\angle\)=90⁰, PR=10cm and \(\angle\) PRQ=30⁰.[Take \(\sqrt{3}=1.73\)]

2

(a)

Find the area of the shaded region with adjoining figure.

2

(a)

A circular is of diameter 1.5m.It is surrounded by a 2m wide path.Find the cost of constructing the path at the rate of Rs.25 per m² .

2

(a)

Find the difference of the areas of a sector of angle 120⁰ and its corresponding major sector of a circle of radius 21cm.

2

(a)

Four cows are tethered at the four corner of a squares plot of size 50 m. So that they just cannot reach one another. What area will be left ungrazed?

2

(a)

A survey was conducted by the students of class X in a particular area to find the most polluted region and it was found that the shaded region is the most polluted. If the radius of the circular part that was surveyed is 14 m and the angle formed between the two radii is 60°, find the area of polluted region. \([Take \ \ \pi = 3.14 \ \ and \sqrt{3} = 1.732]\)
(a) How is pollution harmful?
(b) Write the steps that you would take to reduce pollution in a particular region.

2

(a)

The minute hand of a clock is 12cm long.Find the area of the face of the clock described by minute hand between 9 a.m. and 9.35 a.m.

2

(a)

In the figure, AB and CD are two diameters of a circle (with centre O) perpendicular to each other and OD is the diameter of the smaller circle.  If OA = 14 cm, find the area of the shaded region.

2

(a)

A car wiper has two blades each of length 56 cm. How much area will they both sweep if each makes an angle of 135° while it moves. \([Use \ \ \pi = \frac{22}{7}]\)

2

(a)

Radii of two concentric circles are 7 cm and 5 cm. Find the area of the portion between two circles.

2

(a)

The radii of two circles are 4 cm and 3 cm. Find the radius of the circle whose area is equal to the sum of the areas of the two circles. Also, find the circumference of this circle.

2

(a)

If the perimeter of a semi-circular protractor is 36 cm, find its diameter.\(\left( \pi =\frac { 22 }{ 7 } \right) \)

2

(a)

If the perimeter of a protractor is 72 cm, calculate its area.\(\left( Use\pi =\frac { 22 }{ 7 } \right) \)

2

(a)