A rectangle. Obviously the right angles are in the four corners of the rectangle. The lines of symmetry occur across the horizontal and vertical. There are no lines of symmetry on the diagonal.
octagon
It is a trapezoid and its other 2 angles are obtuse and acute
what shape has 2 right angles , no lines of symmetry , 1 pair of parallel sides and no equal sides ?
an equilateral triangle
no shape does! * * * * * Not true. A parallelogram has rotational symmetry of order 2, but no lines of symmetry.
a pentagon
pentagram
A rectangle.
A pentagon has 5 lines of symmetry and no right angle.
octagon
If your asking what shape has three lines of symmetry, your answer would be an equilateral triangle. You can tell how many lines of symmetry a shape that has all angles of the same measure has by looking at it's angles. Ex., pentagon has five angles--five lines of symmetry; octagon has eight angles, eight lines of symmetry; etc.
An irregular quadrilateral.
rhombus
A rectangle.
a square
Parrallelogram (it has rotational symmetry but no lines of symmetry)
square and rectangles are technicality squares