Question

Two angles of triangle are of 45°and 55°.Find the measures of third angle​

Answer 1

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Step-by-step explanation:

1st angle = 45°

2nd angle = 55°

3rd angle = ?

now,

45°+55°+ 3rd angle = 180° (property of ∆)

100+3rd angle = 180°

3rd angle. = 180° - 100°

3rd angle = 80° ans