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3 years ago

Is anyone able to explain how the answer is D?

Mathematics

2 answers:

laiz [17]3 years ago

6 0

Answer:

Step-by-step 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°

noname [10]3 years ago

3 0

Answer:

Step-by-step explanation:

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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