Question

In the 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?

A) 3√15 B) 5√15 C) 6√15 D) 4√15

Answer 1

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B) 5√15 ✔✔