No, because none of its 3 sides are parallel
An obtuse triangle has one of its angle greater that 90 degrees.His plate was in the shape of an obtuse triangle.
No.
An obtuse triangle or an isosceles triangle if the 2 acute angles are equal in size
No because a trapezoid is a 4 sided quadrilateral whereas an obtuse triangle is a 3 sided shape.
A Hexagon has 3 pairs of parallel line and all angles are obtuse.
an angle that is above 180 degrees
An obtuse triangle has 3 sides.
triangle
a scalene triangle, an obtuse triangle, a right angle.
None normally but if it is in the shape of an isosceles triangle then it will have 2 equal sides.
Octagon
pentagon