Pls solve this problems for me
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Answer:
A = 90°
B = 90°
Step-by-step explanation:
i will answer 1st one
as we know sum Of all angles of triangles are 180°
therefore
D + O + A = 180°
50° + 40° + A = 180°
90° + A = 180°
A = 180° - 90°
A = 90°
they said that OAD = OBC
Therefore B = 90°
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