Question

A E 609 6. In the adjoining figure, it is given that ZA = 60°, CE || BA and ZECD = 65°. Then ZACB equals. (a) 60° (b) 55° (c) 70° (d) 90° AI - B 65° C Fig. Q.6


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Answer 1

Answer:

∠ACB=55 ∘

Step-by-step explanation:

R.E.F. Image.

∠A=60 ∘

CE || AB

∠ECD=65 ∘

(Interior Alternate Angle)

∠BAC=∠ACE

∠ACE=60 ∘

∠BCD=180 ∘

 (linear Angle) or (linear Point)

∠ACB+∠ACE+∠ECD=180 .

∠ACB=180 ∘

−(60+65) =180 ∘ −(125)

∠ACB=55 ∘