2014 AMC 12B Problems/Problem 9
Revision as of 21:36, 20 February 2014 by Kevin38017 (talk | contribs)
Problem
Convex quadrilateral has , , , , and , as shown. What is the area of the quadrilateral?
Solution
Note that . Also note that is a right angle because is a right triangle. The area of the quadrilateral is the sum of the areas of and which is equal to