KNOW WHICH LINE MATTERS WHEN FINDING AREA & VOLUME! IDENTIFYING HEIGHT & BASE.

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Presentation transcript:

KNOW WHICH LINE MATTERS WHEN FINDING AREA & VOLUME! 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.