5sos4ever123
5sos4ever123 5sos4ever123
  • 02-05-2018
  • Mathematics
contestada

HELP ME PLEASE WILL PICK BRAINLYEST

HELP ME PLEASE WILL PICK BRAINLYEST class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 02-05-2018
Here's one way to do it.

AB ≅ AC . . . . . . . . . . given
∠BAY ≅ ∠CAY . . . . given
AY ≅ AY . . . . . . . . . . reflexive property
ΔBAY ≅ ΔCAY . . . .. SAS congruence
XY ≅ XY . . . . . . . . . . reflexive property
∠AYB ≅ ∠AYC . . . . CPCTC
BY ≅ CY . . . . . . . . . . CPCTC
ΔXYB ≅ ΔXYC . . . .. SAS congruence

Therefore ...
∠XCY ≅ ∠XBY . . . . CPCTC
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