An irregular heptagon is one in which at least one of the sides or at least one of the angles is different from the rest.
yes
If you meen the three angles, all tirangles angles add to 180 degrees. But all of the angles must be different, that's what makes it an acute triange. So three.
A scalene triangle
There are at least 28 different pairs of angles: 66 if the first two lines are not parallel. Your question needs to be more specific as to which angles you mean.
It has at least two sides of different length or at least two angles of different measure.
A straight line perhaps
An irregular heptagon is one in which at least one of the sides or at least one of the angles is different from the rest.
Right angles Rectangle Diagonals Triangle Trapezoid Symmetry A 2D or 3D shape Rays Circle Arc Parallel lines Oval
yes
Species
If you meen the three angles, all tirangles angles add to 180 degrees. But all of the angles must be different, that's what makes it an acute triange. So three.
A scalene triangle
A triangle perhaps which has only 3 sides
There are at least 30 angles between edges in a right pentagonal prism. If the entlgon is regular there are two different vlues for these angles; 90 and 108 degrees.
There are at least 28 different pairs of angles: 66 if the first two lines are not parallel. Your question needs to be more specific as to which angles you mean.
Two different polygons that have at least one obtuse angle are a trapezoid and a pentagon. A trapezoid can have one of its angles greater than 90 degrees, making it obtuse. Similarly, a pentagon can also have one or more angles that exceed 90 degrees, thus containing obtuse angles as well.