lesson
Deriving the Triangle Area Formula from Rectangles and Parallelograms
Demonstrate that the area of any triangle is half the area of a bounding parallelogram with the same base and height (A = 1/2 · b · h).
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Area and Perimeter of Two-Dimensional Polygons
10 lessons
Goal
Derive and apply formulas for perimeter and area of triangles, parallelograms, rhombuses, and trapezoids with consistent metric and customary units.
10 lessons
0 of 10 done
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- Finding Unknown Side Lengths from Given PerimetersNot started yet
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- Deriving the Triangle Area Formula from Rectangles and ParallelogramsYou are here
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- Deriving and Calculating the Area of TrapezoidsNot started yet
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- Finding Missing Dimensions from Given Polygon AreasNot started yet
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