An obtuse angle
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An angle of 145 degrees is an obtuse angle because it is greater than 90 but less than 180 degrees
An angle of 145 degrees is more than 90 degrees and less than 180 degrees, so is classed as being an obtuse angle.
35, 145 and 145 degrees
An angle of 145 degrees is more than 90 degrees and less than 180 degrees, so is classed as being an obtuse angle.
The opposite angles of a rhombus are congruent. So the angle opposite to the given angle is also 35 degrees. The consecutive angles of a rhombus are supplementary (add up to 180 degrees). So the supplement angle of the given angle is 145 degrees (180 - 35), and the angle opposite to that angle also will be 145 degrees.