Answer:
D
Explanation:
The angle at the centre of a circle is twice the angle at the circumference for angles subtended by the same arc.
∠DAR and ∠DBR are both subtended by the arc RD, hence
∠DAR = 2∠DBR = 2 × 34° = 68°
There is theorem in this chapter which explains the answer
According to the theorem ,
/_rbd = 2 /_ rad
Therefore , rbd = 34 ° .
Hence , rad = 2x 34
Therefore , rad = 68°
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