Notes 5.2 – Areas of Triangles, Parallelograms, and Trapezoids

 

Parts of a Triangle ,Trapezoid, and Parallelogram

 

Base – any side (leg) can be a base of a figure

Altitude – a perpendicular segment from a vertex (base) to the base of a figure

Height – length of the altitude

 

 

 

 

 

 

 

Area Formulas

 

Triangle:                     A = ½ bh

 

 

 

 

 

 

 

Parallelogram:                        A = bh

 

 

 

 

 

 

 

Trapezoid:                  A = ½ ()h