问题
单项选择题
The size of a flat-screen television is given as the length of the screen’s diagonal. How many square inches greater is the screen of a square 34-inch flat-screen television than a square 27-inch fiat-screen television ？（）
A. 106.75
B. 213.5
C. 427
D. 729
E. 1,156
答案
参考答案：B
解析：
The question specifies that the televisions are square, so the diagonals are part of 45-45-90 triangles. This means that the side of such a television is the diagonal divided by 
. This would be an awkward number to deal with, but the question calls for areas, so you need to square the length of a side in order to get the area of the screen, thereby removing the square root. Set up the equation
