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26-02-2022
Mathematics

contestada

can someone help me with this please

can someone help me with this please class=

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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