MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Areas of Combination of Plane Figures

If the adjoin...

Question

If the adjoining figure is a sector of a circle of radius 10.5 cm, what is the perimeter of the sector? (Take $π = 22 / 7$ )

Open in App

Solution

Given figure is a quadrant of a circle. We have given radius of sector that is 10.5 cm. Arc AB subtended an angle of 60° at the centre of the circle.

Perimeter of the sector

Substituting the values we get,

Perimeter of the sector …… (1)

Now we will simplify equation (1) as shown below,

Now we will substitute.

Therefore, perimeter of the given sector is.

Suggest Corrections

thumbs-up

13

Similar questions

The given figure is a sector of a circle of radius 20 cm. Is the perimeter of the sector 61 cm? (Take $π = \frac{22}{7}$ )

The area of a sector (in $c m^{2}$ )of a circle with radius 6 cm if angle of the sector is $70^{\circ}$ will be __ . ( Take $π$ = $\frac{22}{7}$ )

A sector of a circle of radius 10.5 cm subtends an angle of 45° at the centre of the circle as in adjoining figure. Find the perimeter of sector.

The area of a sector (in $c m^{2}$ )of a circle with radius 6 cm if angle of the sector is $70^{\circ}$ will be __ $c m^{2}$ . ( Take $π$ = $\frac{22}{7}$ )

Q. In the adjoining figure,

O A C B

is a quadrant of a circle of radius

7 c m

. The perimeter of the quadrant is
Note:

π = \frac{22}{7}

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Visualisations

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Areas of Combination of Plane Figures

Standard X Mathematics

Join BYJU'S Learning Program

CrossIcon