cale2
cale2
25-01-2018
Mathematics
contestada
Could I have help with this question
Respuesta :
evgeniylevi
evgeniylevi
26-01-2018
See, pls, this:
If ∠y=∠CBD, then in
ΔABX: ∠A=40°; ∠X=90° ⇒ ∠ B=180-(40+90)=50°.
∠B of ΔABX=∠CBD=∠y=50°.
Answer: 50°.
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