MathDB
AMC 8 2004 Problem 14

Source:

July 22, 2011
geometry

Problem Statement

What is the area enclosed by the geoboard quadrilateral below?
[asy] int i,j; for(i=0; i<11; i=i+1) { for(j=0; j<11; j=j+1) { dot((i,j)); } }
draw((0,5)--(4,0)--(10,10)--(3,4)--cycle, linewidth(0.7)); [/asy]
<spanclass=latexbold>(A)</span>15<spanclass=latexbold>(B)</span>1812<spanclass=latexbold>(C)</span>2212<spanclass=latexbold>(D)</span>27<spanclass=latexbold>(E)</span>41<span class='latex-bold'>(A)</span> 15\qquad <span class='latex-bold'>(B)</span> 18\tfrac12\qquad <span class='latex-bold'>(C)</span> 22\tfrac12\qquad <span class='latex-bold'>(D)</span> 27\qquad <span class='latex-bold'>(E)</span> 41\qquad