1.
If the arc of circle of radius 30 cm has a length of 19 cm then the angle subtended at center of circle is

2.
The formula used to measure circumference of circle is

3.
The quarter of the circle is

4.
In the formula 2πr, the 'r' is considered as

5.
Considering radian, the value of tan 1.1 is

6.
If the radius is 18 cm and the angle at center of circle is 120° then the area of sector is

7.
The largest part of the circle divided by the chord is called

8.
The chord divides the circle into

9.
The value of tan π⁄7 considering radian is

10.
If the circumference of circle is 64π then the area of circle (in terms of π) is

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