Question

what is b and c plz tell me fast ​

Answer 1

Answer:

C=40,B=65

Step-by-step explanation:

since ∠CED=40°,    ∠ACB=40°

as we know ,sum of the angles of a triangle =180°

   so,   ∠B=65°

hope it helps you

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Answer 2

Answer:

angle B=40°

angle ACB=65°

angle C=180°[Linear pair]

Step-by-step explanation:

Given- AB||CE

proof- Angle ACE= angle CAB( alternate int. angles ans AB||CE) hence angle ACE=75°

NOW, Angle ACE+angle ACB+angle ECD=180°(Linear pair)

so, 75°+ angleACB +40°=180°

115°+angle ACB=180°

180°-115°= angle ACB

hence 65°= angle ACB

Now angleABC +AngleBCA +angleCAB=180°(ASP)

ABC+65°+75°=180°

140°+angle ABC= 180°

angle ABC = 40°

HENCE PROVED.