2005 Alabama ARML TST Problems/Problem 11

Problem

In concave hexagon $ABCDEF$ , $\angle A = \angle B = \angle C = 90^\circ$ , $\angle D = 100^\circ$ , and $\angle F = 80^\circ$ . Also, $CD=FA$ , $AB=7$ , $BC=9$ , and $EF+DE=12$ . Compute the area of the hexagon.

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.

2005 Alabama ARML TST (Problems)
Preceded by: Problem 10	Followed by: Problem 12
1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15

Page

Toolbox

Search

2005 Alabama ARML TST Problems/Problem 11

Problem

Solution

See also