Difference between revisions of "2005 Alabama ARML TST Problems/Problem 11"

(New page: ==Problem== In concave hexagon <math>ABCDEF</math>, <math>\angle A = \angle B = \angle C = 90^\circ</math>, <math>\angle D = 100^\circ</math>, and <math>\angle F = 80^\circ</math>. Also, ...)
 
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==See also==
 
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{{ARML box|year=2005|state=Alabama|num-b=10|num-a=12}}

Revision as of 23:21, 3 March 2008

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

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See also

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
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