A parallelogram is a four-sided figure with opposite sides that are parallel. The height of a parallelogram is a line segment that goes from the base to the opposite side at a right angle. Imagine cutting a parallelogram along its height to form two separate figures. If one figure is moved to the opposite side of the other figure, the result is a rectangle with height equal to the height of the parallelogram and base equal to the base of the parallelogram. Since the area of a rectangle is A = b × h, the area of a parallelogram is A = b × h. Be careful not to confuse the height and side of a parallelogram. The height is a line segment perpendicular to the base.
Area of Parallelograms using the Brainingcamp Geoboard virtual manipulative.
Brainingcamp virtual manipulatives can be used anywhere with no setup, cleanup, or lost parts. They are highly effective at engaging today’s digital learners and helping them bringing abstract math concepts to life.
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