Question

in adjoing figure ΔABC ≈ ΔADC. If <BAC =30° and <ABC=100° then <ACD isvequal to dash​

Answer 1

Answer:

Given: AB=AC, ∠ACD=130

∠ACD+∠ACB=180 (Linear pair)

130+∠ACB=180

∠ACB=50

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Now, In △ABC,

∠ABC=∠ACB=50 (Isosceles triangle property)

Sum of angles = 180

∠ABC+∠ACB+∠BAC=180

50+50+∠BAC=180

∠BAC=80

∘

Step-by-step explanation:

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