In the given figure, B and C are the centres of the two circles. ADE is the common tangent

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QID:26 In the given figure, B and C are the centres of the two circles. ADE is the common tangent to the two circles. If the ratio of the radius of both the circles is 3:5 and AC=40, then what is the value of DE?

दी गई आकृति में, B तथा C दो वृत्तों के केन्द्र है | ADE दोनों वृत्तों की एक उभयनिष्ट स्पर्श रेखा है | यदि दोनों वृत्तों की त्रिज्याओं का अनुपात 3:5 है तथा AC=40 है, तो DE का मान क्या है ?

A) 3√15
B) 5√15
C) 6√15
D) 4√15

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