Keys

Legend-

= Scalene Triangle with 2 acute angles and 1 obtuse angle.

Equilateral Triangle with all equal sides(all acute).

= Right Angled Triangle with 1 right angle and 2 acute angles.

=Acute Angled Triangle with 3 acute angles.

= Obtuse Angled Triangle with 1 obtuse angle and 2 acute angles.

= Isosceles Triangle with 3 acute angles, 2 angles the same.

 = 2 Congruent Triangles with 3 acute angles each.

= Trapezium with 2acute angles, 1 obtuse and 1 right angle.

= 2 Congruent Trapezium’s wit 2 acute angles and 2 obtuse angles.

= Kite with 3 obtuse angles and 1 acute angle.

= Parallelogram with 4 equal acute angles.

=Pentadecagon, a 15 sided polygon. Polygon #1

= Rectangle with 4 equal right angles.

=Rhombus with 4 equal acute angles.

= Square with 4 equal right angles.

=Right Angled Triangles with 1 right angle and 2, 30 degrees angles as Polygon #2