新SAT数学练习题目
Mathematics>Standard Multiple Choice
Read the following SAT test question and thenclick on a button to select your answer.
A circle in the x y-plane has its center at (-100, 221) and a diameter of 17. Which of the following isan equation of the circle?
A.(x+100)²+(y-221)²=72.25
B.(x+100)²+(y-221)²=289
C.(x-100)²+(y+221)²=72.25
D.(x-100)²+(y+221)²=289
重点单词讲解：
equation [i'kweiʃən] n. 相等，方程(式), 等式，均衡
multiple ['mʌltipl] adj. 许多，多种多样的
formula ['fɔ:mjulə] n. 公式，配方，规则;代乳品
circle ['sə:kl] n. 圈子，圆周，循环
diameter [dai'æmitə] n. 直径
radius ['reidiəs] n. 半径，桡骨，半径范围，辐射区
Mathematics>Standard Multiple Choice
Read the following SAT test question and thenclick on a button to select your answer.
A circle in the x y-plane has its center at (-100, 221) and a diameter of 17. Which of the following isan equation of the circle?
A.(x+100)²+(y-221)²=72.25
B.(x+100)²+(y-221)²=289
C.(x-100)²+(y+221)²=72.25
D.(x-100)²+(y+221)²=289
重点单词讲解：
equation [i'kweiʃən] n. 相等，方程(式), 等式，均衡
multiple ['mʌltipl] adj. 许多，多种多样的
formula ['fɔ:mjulə] n. 公式，配方，规则;代乳品
circle ['sə:kl] n. 圈子，圆周，循环
diameter [dai'æmitə] n. 直径
radius ['reidiəs] n. 半径，桡骨，半径范围，辐射区
