Finding the Area of Polygons Vocabulary Perimeter – The sum of all sides of the shape. Area –...
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Finding the Area of Polygons
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Transcript of Finding the Area of Polygons Vocabulary Perimeter – The sum of all sides of the shape. Area –...
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- Finding the Area of Polygons
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- Vocabulary Perimeter The sum of all sides of the shape. Area The total occupied space of a shape in units squared.
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- Area of Triangles Base (b) Height (h)
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- We know how to find the area of a square or a rectangle
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- What if we cut the shapes in half?
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- Example = = 12 units squared
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- Try
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- One More
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- Notice all of our examples have been right triangles In other triangles, you must make sure you are using the height. Height is always perpendicular to the base
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- Find the Area 3 in 7 in 5 in
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- Find the Area 6 in 12 in 10 in
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- .and these guys make millions
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- Finding the Area of Other Polygons
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- We Know How to Find the Area of Several Figures Already
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- Finding the area of a rhombus and parallelogram They are just squares and rectangles pushed over Area = 4 un Notice that we are not using the length of the angled side! 3
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- Trapezoid Formula for area
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- Trapezoids
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- Area of Other Polygons
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- Sometimes Things Are Not Perfect or We are Missing Vital Information Divide the shape into shapes we can use
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- Example
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- 4 4
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- 2 2 3
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- Closure: With a partner find the area 3 5 6 4