Question

In the right angled triangle if ∠ = ∠ A C find
the value of ∠ACD .

Answer 1

ACD=90°+x
but in triangle ABC ,A+B+C=180°
if B=90° then,x+y=90°
hence ACD=2x+y

Answer 2

∠BAC=∠ACB

∠BAC+∠ACB+∠CBA=180°

∠ACB+∠ACB+90=180

2∠ACB=180-90

∠ACB=90/2

∠ACB=45

• ∠ACB+∠ACD=180

       ∠45+∠ACD=180

         ∠ACD=180-45

•    ∠ACD=135

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