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1. In the diagram, ∠ABC = ∠BDC = 90◦ . We know BD = 30 and CD = 72. What is AB?

 

Multiple questions deleted.

One question per post. Learn from the answer before you post the next one.

Plus there is no diagram so how do you expect anyone to answer it?

Added by Melody.

 

Thank you so much! 

 Nov 14, 2020
edited by Melody  Nov 14, 2020
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AB = 24.

 Nov 14, 2020
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Where's a diagram? cheeky

 Nov 15, 2020

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