Chat with our AI personalities
Not always. A parallelogram only has to have two equal parallel sides and its angles does not have to be 90°. Only two types of parallelogram, the rectangle and the square, have four right angles.
A square because a parallelogram has two parallel sides and have two adjacent right angles but a square and a rectangle have also a two adjacent right angles.
A rectangle
A rectangle consists of two pairs of parallel lines which means that it is a parallelogram. However, the angles of a parallelogram need not be right angles, so all parallelograms are not right angles.
It is a rhombus because its diagonals meet at right angles.