Decomposing to find area
6 videos
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4
Basic geometry and measurement - Area of a Parallelogram
Learn how to calculate the area of a parallelogram using base times height by transforming it into a rectangle through a simple visual demonstration.
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Basic geometry and measurement - Area of a Triangle
Learn how to calculate triangle area using the formula: 1/2 × base × height. Discover why triangles are half the area of rectangles with the same dimensions.
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Basic geometry and measurement - Finding a Missing Side Using Area
Learn how to find the missing height of a parallelogram when you know the area and base by using the formula Area = base × height and dividing to solve.
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Basic geometry and measurement - Decomposing Shapes to Find Area
Learn how to find the area of irregular shapes by breaking them into rectangles and triangles, calculating each area, and adding them together.
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Basic geometry and measurement - Area of Composite Shapes — Worked Example
Learn how to calculate the area of composite shapes by splitting them into rectangles and triangles, then adding the areas together.
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Basic geometry and measurement - Finding Area on the Coordinate Plane
Learn how to find the area of shapes like parallelograms and triangles on a coordinate plane by using the grid to measure base and height, then applying area formulas.