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It is not entirely clear what the question is about. The sum of the angles of a triangle on a plane surface is 180 degrees. However, on a concave surface, such as the inside of a dome, they will add to less than that and, at the appropriate curvature, they will sum to 145 degrees.
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Earn +20 ptsQ: What kind of triangles have 145 degree?
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Continue Learning about Geometry
What is the supplymentry angle of a 145 degree angle?
The supplementary angle to a 145 degree angle will be a 35 degree angle because 145 + 35 = 180.
Is 145 degree an obtuse angle?
No
What is the supplement of a 35 degree angle?
The supplement of a 35 degree angle would be 145 degree angle.
What type of triangle is always similar to all other triangles of the same type?
90 degree triangles are always similar.
What kind of triangles does the Pythagorean theorem work for?
All right-angles triangles. That is triangles that contain one angle at 90 degrees.
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