Yes, otherwise it would be a different shape such as a rhombus or trapezium.
yes, in a sq. or a rec. , all adjacent sides are perpendicular
Rectangles. (Which includes squares.)
A square.
Generally no. If they are perpendicular, all four angles are right angles and the parallelogram is usually called a rectangle.
Yes, otherwise it would be a different shape such as a rhombus or trapezium.
yes, in a sq. or a rec. , all adjacent sides are perpendicular
It is a rhombus
Adjacent sides are perpendicular. Opposite sides are parallel.
all the sides
Square & Rectangle are the only two. Rhombus (diamond) & parallelogram have adjacent sides, but no 90 degree angles (not perpendicular).
Rectangles. (Which includes squares.)
A square.
Adjacent sides of the flags of all nations are perpendicular line segments.
All angles in a square are 90o so all adjacent sides are perpendicular to one another.
All of the adjacent faces are perpendicular. So there are 6 faces x 4 faces adjacent to each face So there are 24 perpendicular faces in a rectangular prism.
Generally no. If they are perpendicular, all four angles are right angles and the parallelogram is usually called a rectangle.