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 ...
Remember, the height must be the perpendicular height, measured across the shape. Calculate the area of the parallelogram. Area = \(9 \times 6 = 54~\text{cm}^2\) The formula for the area of a ...
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