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Agata [3.3K]
4 years ago
12

BRAINLIEST! ASAP! SHOW WORK PLEASE! THANKS!

Mathematics
1 answer:
frozen [14]4 years ago
3 0
Triangles RDO and RHC are similar, so you have
.. RO:RC = RD:RH
.. RO:(RD +CD) = RD:(RO +OH)
.. 6:(4 +CD) = 4:(6 +4) . . . . . . . fill in numbers
.. 6*10 = 4(4 +CD) . . . . . . . . . . product of means = product of extremes
.. 15 = 4 +CD
.. CD = 11
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