Question

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Answer 1

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Answer 2

Answer:

∠CAD = 34°

Step-by-step explanation:

∠OBA + ∠BOA + ∠OAB = 180

56° + 90° +∠OAB = 180

146° + ∠OAB = 180

∠OAB = 34°

IN ΔABC,

AC=AB

∴∠CBA = ∠BCA

∠CBA+∠BCA+∠BAC=180°

56+56+∠BAC=180°

112°+∠BAC = 180°

∠BAC=68°

∠CAD=∠DAB=∠BAC÷2

∠CAD = 68÷2

∠CAD = 34°