Perimeter, Area, VolumeHow do you remember what to do?

PerimeterAdd all sides of a figure.Think of the lower case t as a + sign.Easily confused with area.Look at the word rim. Where is a rim?The rim goes around the basket. So for

perimeter you go around the figure.

PerimeterWhat is the perimeter of the figure below?

33 meters

28 meters

PerimeterThe race course was a 25 mile marathon. One

of the sides of the course is not labeled. What would be the measurement of the side of the race course?

2 miles2 miles

6 miles6 miles

? miles

PerimeterAn equilateral triangle has a perimeter of 12

cm. What could be the measurement of each side?

Draw your triangle. Remember an equilateral triangle has 3 equal sides.

AreaArea is the measurement of the number of

square units needed to cover a surfaceArea is found by multiplying length times

width or counting squares if they are available

Think of area as how much it covers like a blanket.

When asked for area think of squares.

AreaFind the area of the rectangle.

33 meters

8 meters

AreaSally was going to buy carpet for her living

room. The carpet was $8 a yard. Below are the measurements for her living room. How much was the new carpet going to cost her?

30 feet

24 feet

VolumeVolume is like an Ogre …it has layers.Volume is the measure of the number of cubic units

needed to fill the space occupied by a solidTake the area and multiply it times the number of layers

(height)- think of layers when you see the l in volumeVolume formula – length x width (area) x heightCount the boxes on the first layer then multiply times

the number of layersThe volume of the box below is Length – 5 cmWidth – 4 cmHeight – 2 cm

VolumeWhat is the volume of a swimming pool with

a width of 25 m, a length of 20 m and a height of 3 m?

VolumeOne of the flower beds will have a stone wall

built at the corner. The stone wall needs to have a concrete foundation. There is a drawing for the trench that will be filled with concrete. Calculate the volume of concrete that will be needed.25 feet

3 feet

5 feet

ReflectionIn the reflection section of your journal, write

the difference between perimeter, area, and volume, how to solve them, and how you plan on remembering which is which. Make sure you use complete sentences with capital letters and end marks. After approval, you are going to type them in to your blog on Thursday.