How to find the resultant of two forces when they are parallel, opposite, or perpendicular in direction.
How to define a rectangle and a square.
How to define an altitude and draw them on acute, right, and obtuse triangles.
How to define a tangent line; how to determine the angle a radius to a tangent forms.
How to identify a kite and its special properties.
How to derive the area formula of a kite based on the rectangle formula; how to calculate the area of a rectangle using diagonal lengths.