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ABD is an isosceles triangle. AB = AD. Find ACB.​

ABD is an isosceles triangle. AB = AD. Find ACB.​-example-1
User Kieveli
by
6.9k points

1 Answer

4 votes

Answer:

∠ ACB = 39°

Explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ BDA is an exterior angle of Δ ACD , then

∠ CAD + ∠ ACB = ∠ ACD , that is

29° + ∠ ACB = 68° ( subtract 29° from both sides )

∠ ACB = 39°

User Jaiprakash Soni
by
6.2k points
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