ABCE is an isosceles trapezoid and ACDE is a rectangle.AB=10 and EC=20.What is the length of AE.
Pick
A) 5	B) 10	C) 12	D) 15	E) 20
As ABCE is an isosceles trapezoid and EC is twice times AB, we can consider the given trapezoid as half of a regular hexagon(as length of diagonal in regular hexagon is always double the side).   Thus, sides AB=AE=BC. =&gt; AE = 10.   ANSWER:10
<result>B</result>
ABCE is an isosceles trapezoid and ACDE is a rectangle.AB=10 and EC=20.What is the length of AE.