The side of a triangle and also its measurement.

The length of the perpendicular segment drawn from the base of a triangle to its opposite vertex.

1/2 x b x h OR b x h/2 is the formula for the:

A 2-d or 3-d figure that can be decomposed into smaller parts.

The sum of the areas of a composite figure's composed parts gives you the:

A rectangular prism with 6 congruent square faces is a :

Each flat surface of a prism is called its:

A 2-d Diagram that can be folded or made into a 3-d figure is a called a:

The total area of the 2-D surfaces that make up a 3-D object is called its:

When two lines intersect and form a right angle they are called-