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for kite ABCD, if RA=15, and BD= 16, find AD

3 answers

Since BD=16, RD=8

AD^2 = 8^2 + 15^2
AD = 17

How did you get 17?

AR^2+RE^2=AD^2
15^2+8^2=AD^2
225+64=AD^2
289=AD^2
√289=AD
17=AD

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