Question

Find "x" in the given figure if it's centre is "O".​

Answer 1

Answer:

angle x=angle cob

angle cob=180 degrees-angle aoc

angle cob=180-130

angle cob=50 degrees

angle x=50 degrees

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Answer 2

Answer:

x=50°

Step-by-step explanation:

∠COB=50° [∵ AOB IS A STRAIGHT LINE AND ∠AOC=150° ,SO  ∠COB=180°- 130°=50°]

NOW IF WE CONSIDER CB TO BE A CHORD, SO ∠COB AND ∠CDB ARE EQUAL BECAUSE THEY ARE ON SAME CHORD SO,

∠COB= ∠CDB= 50°