Question

A chord AB of a circle with centre O is 10 cm. If the chord is 12 cm away f om centre, then what is the radius of the circle?​

Answer 1

radius of the circle is 13cm

Answer 2

Answer:

AB=10cm

centre O

AD=1/2*AB(by perpendicular theorem)

AD=1/2*10

AD=5cm

OD=12cm

OA^2=OD^2+AD^2

OA=√12^2+5^2

OA=√144+25

OA=√169

OA=13

the radius of circle is 13cm

Step-by-step explanation:

the perpendicular bisector of a chord from centre divides the chord into two equal parts