Question

two concentric circles with center O in the given figure if AD= 10cm and BC=6cm find the length of CD​

Answer 1

Answer:

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Answer 2

Answer:

the sum of triangle is 180

AD^2+BC^2+CD^2=180

10^2+6^2+CD^2=180

100+36+CD=180

136-180=44

CD=44

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