Unit 9: Measurement

Standard

Volume

Volume is the measure of the inside of a 3-D figure.

The amount of 3-dimensional space an object occupies. Capacity.

Surface Area

The formula is V=Bh

B=Area of the Base (use the STAAR Chart to find B)
h=height of Prism

Units of volume include:
Metric: cubic centimeters (cm3), cubic meters (m3)

Volume

In this 3-D figure:

B= bh = 10(5) =50

h= 4

So, V= (550)(4) = 200 units³

For this example the volume is 200 units3

Practice Volume here and here .

Surface Area

The total area of the surface of a three-dimensional object.

Example: the surface area of a cube is the area of all 6 faces added together.
The formula is S = Ph + 2B

P=Perimeter of the Base (add all the sides of the base together)
h=height of Prism
B=Area of the Base (use the STAAR Chart to find B)
Units of volume include:
Metric: cubic centimeters (cm2), cubic meters (m2),

Practice Surface Area here.

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