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In a circle two equal and parallel chord...

In a circle two equal and parallel chords are 6 cm apart and lie on the opposite sides of the centre of the circle.If the length of each chord is 8 cm, than the radius of the circle is:
एक वृत्त में दो बराबर और समान्तर जीवाएँ 6 cm के दुरी पर हैं और वृत्त के केंद्र के विपरीत भाग पर स्थित हैं। यदि प्रत्येक जीवाएँ की लंबाई 8 सेमी है, तो वृत्त की त्रिज्या है:

A

5 cm

B

7 cm

C

3 cm

D

2 cm

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