Measurements!
Perimeter
What is perimeter?
Perimeter is the distance or length around any shape or object
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.
The Pythagorean Theorum
a2+b2=c2
What is the hypotenuse?
The longests side of a right-angled triangle
Slant Height vs. Perpendicular Height
Slant height
Perpendicular height
Labeling Units
Perimeter: labeled with the units in which you are measuing in. Example: meters, inches, centimetersundefined
Area: Your answer must be in units squared undefined
Volume: Since you are finding the inside of a 3D object your answer must be cubed undefined
Surface Area: same as area. Answer must be in units squaredundefined
Volume
When measuring rectangular prisms or cubes you take the length x width x height
Surface Area Of All Shapes
Song To Help Remember Formulas
The 4 "W's" of Measuring
1) WHY? Why do we measure?
2) WHERE? Our why helps us determine the where. Where are you measuring? Area, perimeter, volume, etc.
3) WHAT? What tool will you use?
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.