pfbfnh8tzj pfbfnh8tzj
  • 26-02-2022
  • Mathematics
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can someone help me with this please

can someone help me with this please class=
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Respuesta :

zsm2800 zsm2800
  • 27-02-2022

Answer:

15.9

Step-by-step explanation:

Draw CE and CF

Note ∠ECD = ∠CFD and ∠D = ∠D

so ΔCED ~ ΔFCD

then ED : CD = CD : PD

CD² = ED x PD = 12 x (9 + 12) = 252

CD = 15.9

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