G9 cet jul math

is a sector of a circle with centre O, radius 8 cm and a perimeter 22 cm. Then the area
of sector, in square cm is
A. 6 B. 28 C. 24 D. 48 E. 12

1. The area , in cm2 , of a circle has the same numerical value as the circumference, in cm, of
   the same circle. The radius , in cm, is
   A. 2 B. 1 C.2/π D.1/π E.1/2
2. An arc PQ subtends an angle of 120° at the centre of a circle of radius 1 cm. The length of
   arc PQ is
   A. 120 cm B. 60 cm C. π/6cm D. 2π/3cm E.π^2/18 cm
3. If the central angle of a circle of radius 14 cm cuts off an arc of length 28 cm , then the radian
   measure of the angle is
   magnitude of resultant vector of two vectors have the same magnitude and opposite
   direction is ………. .
4. The ……… changes the state of motion of a body.
5. The new vectors obtained from sub-dividing a vector is called ……… .
6. Q ⃗ and - Q ⃗ are in ……… directions.
7. Time is not a ……… quantity.
8. Displacement is not a ……… quantity.
9. The maximum value of the resultant of two vectors acting at a point occurs when they are in
   ………. directions.
10. If the sum of the vectors is zero, the two vectors have same magnitude and ………
    directions.
    11.Quantities that have only ………. are called scalars.