CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 4

EASY

10th CBSE

IMPORTANT

Earn 100

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

Important Questions on Areas Related to Circles

MEDIUM

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 5

Area of a sector of central angle

200 °

of a circle is

770 cm ²

, find the length of the corresponding arc of this sector.

EASY

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 6

If the area of a semicircular region is

77 {cm}^{2}

, find its perimeter.

EASY

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 7

The length of the minute hand of a clock is

14 cm

long. Find the area swept by the minute hand in

5

minutes.

EASY

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 8

To warn ships for underwater rocks, a lighthouse spreads a red coloured light over a sector of angle

80 °

to a distance of

16.5 km

. Find the area of the sea over which the ships are warned.

(Use = 3.14)

MEDIUM

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 9

Find the area of the sector of a circle with radius

4 cm

and of angle

30 °

. Also find the area of the corresponding major sector. Use

= 3.14

MEDIUM

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 10

Find the difference of the areas of a sector of angle

120 °

and its corresponding major sector of a circle of radius

21 cm

.

MEDIUM

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 12

In the adjoining figure, $A B and C D$ are respectively arcs of two concentric circles with centre $O$ of a radii $7 cm and 3.5 cm$ . If $∠ A O B = 30 °$ , find the area of the shaded region.

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MEDIUM

10th CBSE

IMPORTANT

CBSE Syllabus Standard Mathematics for Class X>Chapter 13 - Areas Related to Circles>Exercise 13.2>Q 13

In the adjoining figure, two concentric circles with centre O have radii 21 cm and 42 cm. If ZAOB = 60°, find the area of the shaded region.

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