# 考满分网

Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and $\overline{PR}$ is parallel to the x-axis. The x- and y-coordinates of P, Q, and R are to be integers that satisfy the inequalities $-4 \le x \le 5$ and $6 \le y \le 16$. How many different triangles with these properties could be constructed?
• A110
• B1,100
• C9,900
• D10,000
• E12,100

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• 所属科目:数学PS
• 题目来源1:OG12-229
• 题目来源2:OG15-228
• 题目来源3:OG16-228
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