[Graphs generated by this script: initPicture(-1,11,-2,11);line([0,0],[2,2.9]);line([2,2.9],[10,0]);line([10,0],[0,0]);strokedasharray="3 5";line([2,0],[2,2.9]);text([2,1.45],"?","right");text([5,0],"7","below");]

Find the height of the triangle pictured above, if the area is 7.

Round your answer to the nearest tenth