Trapezoid: Area Summary

1. A trapezoid is 4-sided figure with exactly one pair of parallel sides.
2. The two parallel sides are the bases; we will call them b1(base one) and b2(base two).
3. The other 2 sides are called the legs. THEY ARE NOT PARALLEL.
4. A trapezoid that has congruent legs is called an isosceles trapezoid.
5. The area of a trapezoid is A= (1/2) h (b1 + b2) , where h=height of the trapezoid, b1= 1st base, and b2= second base.