Question

Angle a is equal to 60 degrees c is parallel to ba and angle acd is equal to 65 degrees find angle acb

Answer 1

ANSWER:

∠ACE  = 80°

∠ACB  = 65°

∠ABC  = 35°

STEP BY STEP EXPLANATION:

∠BAC = ∠ACE   (alternative angles)

= ∠ACE  = 80°

∠ACB + ∠ACE + ∠ECD = 180°  ( straight line)

= ∠ACB + 80° + 35° = 180°

= ∠ACB  = 65°

∠ACB + ∠BAC + ∠ABC  = 180°  ( sum of angle of triangle)

= 65° + 80° + ∠ABC  = 180°

=∠ABC  = 35°

Answer 2

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