colonialtimes111
colonialtimes111 colonialtimes111
  • 21-07-2020
  • Mathematics
contestada

Find the value of x. Give reasons to justify your solution. D ∈ AC

Find the value of x Give reasons to justify your solution D AC class=

Respuesta :

eudora eudora
  • 26-07-2020

Answer:

x = 25°

Step-by-step explanation:

From the picture attached,

Since AE║BC and AC is a transverse,

Therefore, ∠EAC ≅ ∠BCA [Alternate interior angles]

m∠EAC = m∠BCA = x°

∠BCD = ∠DCB + ∠DBC [Since ∠BCD is an exterior angle of ΔBDC]

m∠BCD = m∠DCB + m∠DBC

50° = x° + x°

2x = 50

x = 25°

Therefore, value of x is 25°.

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