The area of a sector is one-twelfth that...

The area of a sector is one-twelfth that of the complete circle. Find the angle of the sector.

Text Solution

AI Generated Solution

Topper's Solved these Questions

ARITHMETIC PROGRESSIONS
RD SHARMA ENGLISH|Exercise All Questions|329 Videos

Similar Questions

Explore conceptually related problems

The area of a sector of a circle 2 cm is pi\ c m^2 . Find the angle contained by the sector

An arc AB of a circle subtends an angle x radians at the center O of the circle. Given that the area of the sector AOB is equal to the square of the length of the arc AB, find the value of x.

The length of the perimeter of a sector of a circle is 20 cm. Give an expression for the area of the sector in terms of r(the radius of the circle) and hence find the maximum area of the sector.

If the area of a sector of a circle is 5/(18) of the area of the circle, then the sector angle is equal to (a) 60^@ (b) 90^@ (c) 100^@ (d) 120^@

The perimeter of a sector of a circle of radius 5.2cm is 16.4cm. Find the area of the sector.

If the area of a sector of a circle is 7/(20) of the area of the circle, then the sector angle is equal to (a) 110o (b) 130o (c) 100o (d) 126o

The area of a sector of a circle of radius 5 cm is 5\ pi\ c m^2 . Find the angle contained by the sector

A central anglej of two concentric circles is (3pi)/(14) . The area of the large sector. What is the ratio of the lengths of the radii of the two circles?

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.

The radius of a circle is 14 cm and the area of the sector is 102.7 cm^(2) . Find the central angle of the sector.

RD SHARMA ENGLISH-AREAS RELATED TO CIRCLES-All Questions

The diameter of a coin is 1 cm (Fig. 15.83). If four such coins be ...
Text Solution
|
From a circular piece of cardboard of radius 3 cm two sectors of 90^@ ...
Text Solution
|
The area of a sector is one-twelfth that of the complete circle. Fi...
Text Solution
|
The radius of a circle with centre O is 5 cm. (Fig. 15.84). Two rad...
Text Solution
|
A B C D E F is a regular hexagon with centre O ). If the area of tri...
Text Solution
|
Find the area enclosed between two concentric circles of radii 3.5 ...
Text Solution
|
A path of 4 m width runs around a semi-circular grassy plot whose circ...
Text Solution
|
Fig. 15.87, shows the cross-section of railway tunnel. The radius O...
Text Solution
|
In Fig. 15.90, O is the centre of a circular arc and A O B is a ...
Text Solution
|
In Figure, two circles with centres A and B touch each other at the ...
Text Solution
|
In Fig. 15.93, A B C D is a rectangle with A B=14\ c m and B C=7\ c ...
Text Solution
|
In Figure, the boundary of the shaded region consists of four semi-c...
Text Solution
|
In Fig. 15.98, A B C is a right angled triangle in which /A=90o , A...
Text Solution
|
In Fig. 15.99, a square O A B C is inscribed in a quadrant O P B Q ...
Text Solution
|
Two circular pieces of equal radii and maximum area, touching each ...
Text Solution
|
In the given figure, three semicircles are drawn of diameter 10 cm, 7 ...
Text Solution
|
In Figure, A B C D is a trapezium of area 24. 5\ c m^2 . In it, A D ...
Text Solution
|
In Figure, from a rectangular region A B C D with A B=20\ c m , a righ...
Text Solution
|
What is the ratio of the areas of a circle and an equilateral trian...
Text Solution
|
The circumference of two circles are in the ratio 2\ :3 . Find the ...
Text Solution
|