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aivan3 [116]
3 years ago
9

Can someone do this with explanation and steps, thanks.

Mathematics
1 answer:
Blababa [14]3 years ago
8 0

Answer:\color{yellow}{}

»» ∆BDC

»» ∆BOA

»» <AC

»» <CB

»» A = 2:4 = 8>

»» <AC = 9, <BC

»» —8×9

A=72

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