Quadrilateral Names and Angle Sum (Interior and Exterior)

Topic:Angles, Parallelogram, Quadrilaterals, Rectangle, Rhombus, Square, Trapezoid

How to name quadrilaterals. The conditions for naming quadrilaterals. Proof the sum of interior (inside) angles = 360 deg. Proof the other three angles equal exterior angle.

New Resources

apec
Colouring of Venn Diagram
Dividing a 3-digit number by a 1-digit number (1)
Untitled
Dividing a 2-digit number by a 1-digit number (1)

Discover Resources

sorcha anab
DC 2015
sine and cosine of complementary angles.
my first book
den rette linjes ligning

Discover Topics

Combinatorics
Bar Chart or Bar Graph
Pyramid
Constructions
Rotation