Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 5

EASY

10th Manipur Board

IMPORTANT

Earn 100

Find the sectorial angle and area of the sector of a circle if the arc length of the corresponding sector is $8.8 cm$ and the radius of the circle is $5.6 cm$ .(use $π = \frac{22}{7}$ )

Important Questions on Mensuration

MEDIUM

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 6

The minute hand of a clock is

4.2 cm

long. Find the area swept by it in

20

minutes. Write the answer in

90 °

(round off to two decimal places).(use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 7

Find the area of a sector of a circle of radius

14 cm

when the sectorial angle is

30 °

. Write the answer in

{cm}^{2}

(round off to two decimal places). (use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 7

Find the area of a sector of a circle of radius

14 cm

when the sectorial angle is

45 °

. Write the answer in

{cm}^{2}

.(use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 7

Find the area of a sector of a circle of radius

14 cm

when the sectorial angle is

60 °

. Write the answer in

{cm}^{2}

(round off to two decimal places).(use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 7

Find the area of a sector of a circle of radius

14 cm

when the sectorial angle is

90 °

. Write the answer in

{cm}^{2}

.(use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 7

Find the area of a sector of a circle of radius

14 cm

when the sectorial angle is

120 °

. Write the answer in

{cm}^{2}

(round off to two decimal places).(use

π = \frac{22}{7}

)

EASY

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 8

Two concentric circles have radii

6 cm

and

4 cm

. A sector of

60 °

is drawn in each circle. Find the difference between the areas of the two sectors. Write the answer in

{cm}^{2}

(round off to two decimal places). (use

π = 3.14

)

MEDIUM

10th Manipur Board

IMPORTANT

Mathematics for Class 10>Chapter 12 - Mensuration>EXERCISE 12.2>Q 9

In a circle of radius $6.3 cm$ , an arc $A B$ subtends an angle of $90 °$ at the centre $O$ of the circle. Find the length of the arc $A B$ .