Two chords of lengths a metre and b metre subtend angles 60° and 90° at the centre of the circle respectively. Which of the following is true ?

Two chords of lengths a metre and b metre subtend angles 60° and 90°

1.	Two chords of lengths a metre and b metre subtend angles 60° and 90° at the centre of the circle respectively. Which of the following is true ?
A.	b = √2a
B.	a =√2b
C.	a = 2b
D.	b = 2a
Answer» B. a =√2b

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Two chords of lengths a metre and b metre subtend angles 60° and 90° at the centre of the circle respectively. Which of the following is true ?

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