Measurements!

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Measurements!

The 4 "W's" of Measuring

4) hoW? How will you measure? (Repeating a unit with no gaps or overlaps). See how many units instead of seeing where you stop measuring.

3) WHAT? What tool will you use?

2) WHERE? Our why helps us determine the where. Where are you measuring? Area, perimeter, volume, etc.

1) WHY? Why do we measure?

Surface Area Of All Shapes

Song To Help Remember Formulas

Formulas

Volume

When measuring rectangular prisms or cubes you take the length x width x height

Helpful website that shows all formulas!!

Labeling Units

Surface Area: same as area. Answer must be in units squared

Volume: Since you are finding the inside of a 3D object your answer must be cubed

Area: Your answer must be in units squared

Perimeter: labeled with the units in which you are measuing in. Example: meters, inches, centimeters

Slant Height vs. Perpendicular Height

Perpendicular height

Slant height

The Pythagorean Theorum

What is the hypotenuse?

The longests side of a right-angled triangle

a2+b2=c2

Basic Definition:

Perimeter

What is perimeter?

Measuring Perimeter: If you have an object and there are given lenghths around all sides than you can simply add up all number to find the total lengh around the ouside of the object.

Perimeter is the distance or length around any shape or object