a) Issoceles trapezoid (1)
b) Trapezoid (7)
c) Quadrilateral (2)
d) Kite (5)
e) Rectangle (6)
f) Parallelogram (8)
g) Square (4)
h) Rhombus (3)
How to identify plane shapes.
a) Isosceles trapezoid : A trapezoid with congruent base angles and non-parallel sides of equal length, exhibiting symmetry.
Quadrilateral (a) has this properties.
b) Trapezoid : A quadrilateral with one pair of parallel sides; the other sides need not be parallel. Figure (b) has just two sides parallel.
c) Quadrilateral : A polygon with four sides. Figure (c) has four sides. No special marking.
d) Kite : A quadrilateral with two pairs of adjacent sides of equal length, often shaped like a diamond. The adjacent sides of (d) are marked equal
e) Rectangle : A parallelogram with four right angles; opposite sides are equal in length. In (e) the foour right angles are marked. Opposite sides marked equal.
f) Parallelogram: A quadrilateral with opposite sides parallel; opposite angles are equal. In figure (f) the opposite sides are marked parallel and equal.
g) Square : A rectangle with four equal sides; all angles are right angles. Figure (g) has all sides equal and the vertex angles marked
h) Rhombus : A parallelogram with four sides of equal length; opposite angles are equal; diagonals bisect each other. Opposite sides marked parallel and equal.