The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...
The parallel sides of a trapezium are labelled 𝒂 and 𝒃. The perpendicular height is the shortest distance between the parallel sides and is labelled 𝒉. Calculating the area of a trapezium is a ...
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