
5.5 Area of Parallelogram Lesson
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Easy
Standards-aligned
Ben Coltharp
Used 23+ times
FREE Resource
7 Slides • 2 Questions
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5.5 Area of Parallelogram Lesson
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Parallelograms
All of these shapes are considered parallelograms.
These get their names because "opposite sides are parallel". For instance, a rectangle, the top and bottom sides are parallel...they will never touch. Same with the left and right sides of it.
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Difference between perimeter and area
With perimeter, we were concerned about the 'outside' distance around a shape
With area, we are now concerned with how many square units are within a shape.
For example, perimeter is how much fence we would need for a garden, and area is how much garden we have inside the fence.
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Area of Parallelograms
A=b⋅h
Notice how our 'h' is a true height...not the fake 'slant height'.
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Fill in the Blanks
Find the area of this parallelogram. Don't include units
Type answer...
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Same idea for rectangles and squares
Take our base (5) and multiply by its true height (3)
5⋅3=15 ft2
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Fill in the Blanks
Find the area of this parallelogram - no units
Type answer...
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Try this challenge!
Hint: Cut this into two shapes, then find the areas and add together
A=120+600=720in2
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Show me your notes when you are finished
5.5 Area of Parallelogram Lesson
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