K N O W W H I C H L I N E M AT T E R S W H E N F I N D I N G A R E A & V O LU M E !

IDENTIFYING HEIGHT & BASE

DEFINING BASE & HEIGHT

Finding area & volume requires using height & base.

However, sometimes finding the right height and base can be confusing. We have to know which lines

are the height & the base, so we can accurately calculate answers! Height

The measurement from the top of the figure to the base,

straight up and down, when the

figure is right side up. (Notice it is not

from top to bottom… it’s top to base!)

Base

The line that the figure ‘stands’ on or can stand on; not always on the bottom, straight

left and right, when the figure is

right side up.

BASE & HEIGHT - TRIANGLES

BASE & HEIGHT - QUADRILATERALS

3D FIGURES

Height for a 3D figure is still from base to base!

With 3D figures, there are TWO

HEIGHTS!

1)The height of the base of the prism.

2)The height of the prism.