OAB 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
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
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
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
The diameter of a circle is 10 cm and the chord through a point P, the midpoint of the chord
is 6 cm . The distance of P from the centre O is
A.3 cm B. 4 cm C. 5 cm D. 6cm E. 7 cm
In the figure, PR⊥OQ and O is the centre. If NQ =2 cm and OQ=5 cm, then PR=………
A. 4 cm B. 5cm C. 6 cm D. 7 cm E. 8 cm
A point P is 10 cm away from the centre of the circle of radius 6cm. The length of the tangent
segment from P to the circle is
A. 5 cm B. 6 cm C. 7 cm D. 8 cm E. 9 cm
