RRB Assistant Loco Pilot and Technician Model Paper 16 with key

Question : 43 of 75

Marks: +1, -0

The chord of length is 12 cm and the distance from centre of circle to chord is 8 cm, find the radius of circle is:

Solution:

AB is the chord of circle
OC is the distance from center of circle to chord
OA is the radius of circle
∴ OA = r =

√{6^2+8^2}

= 10 cm

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