Shapes

SHAPES

Trapezium

A trapezium is a quadrilateral with one pair of opposite parallel sides.

Properties:

• The parallel sides are called bases.
• The other two non-parallel sides are called legs.
• If the two non-parallel sides are equal and form equal angles at one of the bases, the trapezium is an isosceles trapezium.

Kite

A kite is a quadrilateral that has 2 pairs of equal-length sides and these sides are adjacent to each other.

Properties:

• The two angles are equal where the unequal sides meet.
• It can be viewed as a pair of congruent triangles with a common base.
• It has 2 diagonals that intersect each other at right angles.
• The longer or main diagonal bisects the other diagonal.
• A kite is symmetrical about its main diagonal.
• The shorter diagonal divides the kite into 2 isosceles triangles.

Parallelogram

A parallelogram is a quadrilateral with two pairs of parallel sides.

Properties:

• Opposite sides are parallel and equal in length.
• Opposite angles are equal in measure.
• Adjacent angles sum up to 180 degrees.
• It has 2 diagonals that bisect each other.
• Each diagonal divides the parallelogram into 2 congruent triangles.
• The two diagonals divide the parallelogram into 4 triangles of equal area.
• Square, rectangle, and rhombus are special types of a parallelogram.