The trapezoid is a quadrilateral withone pairof parallel sides.
arrows indicate one set of parallel sides
Theparallel sidesof a trapezoid are called thebases.Theheightof a trapezoid is theperpendicular distancebetweenthebases.
Theareaof a trapezoid isequal tothe average of the bases times the height.Addthe 2 bases,divideby 2 andthenmultiplyby the height.
area =
((b1 + b2) / 2)h
This may be a helpfulwebsiteto find the area of a trapezoid.
If thetwo sideswhich arenot parallelhaveequal lengths, then the trapezoid is called anisosceles trapezoid. Thebase anglesin anisosceles trapezoidareequalinmeasurement.
A trapezoid isnota parallelogram because only one pair of sides are parallel.
TRAPEZOID
The trapezoid is a quadrilateral with one pair of parallel sides.
The parallel sides of a trapezoid are called the bases. The height of a trapezoid is the perpendicular distance between the bases.
The area of a trapezoid is equal to the average of the bases times the height. Add the 2 bases, divide by 2 and then multiply by the height.
area =
((b1 + b2) / 2)h
This may be a helpful website to find the area of a trapezoid.
If the two sides which are not parallel have equal lengths, then the trapezoid is called an isosceles trapezoid. The base angles in an isosceles trapezoid are equal in measurement.
A trapezoid is not a parallelogram because only one pair of sides are parallel.
Properties
- Four sides
- Four vertices (or corners)
- The interior angles add up to 360 degrees