O is the centre of the circle, and AB is a chord. P is a point on AB. PA=3 centimeters, PB-8 centimeters, OP= 5 centimeters what is the radius of the circle?
A5.5 centimeters
B7 centimeters
C5 centimeters
D6.5 centimeters
O is the centre of the circle, and AB is a chord. P is a point on AB. PA=3 centimeters, PB-8 centimeters, OP= 5 centimeters what is the radius of the circle?
A5.5 centimeters
B7 centimeters
C5 centimeters
D6.5 centimeters
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The circumference of a circle is 11 cm and the angle of a sector of the circle is 60°. The area of the sector is