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F5 Maths
發問:
Figure: http://img690.imageshack.us/img690/3682/54444575.jpg In the figure, PXA and PYB are tangents to the circle at X and Y respectively. If XY = XZ, which of the following must be true? I. a = c II. e = b III. a = b A. I only B. II only C. III only D. I and II only E. I and III only 更新: For e + 2c = 180deg ( 更新 2: 2c係邊度計的?
In the figure, PXA and PYB are tangents to the circle at X and Y respectively. If XY = XZ, which of the following must be true? I. a = c II. e = b III. a = b a = d (ext. opp
其他解答:
F5 Maths
發問:
Figure: http://img690.imageshack.us/img690/3682/54444575.jpg In the figure, PXA and PYB are tangents to the circle at X and Y respectively. If XY = XZ, which of the following must be true? I. a = c II. e = b III. a = b A. I only B. II only C. III only D. I and II only E. I and III only 更新: For e + 2c = 180deg ( 更新 2: 2c係邊度計的?
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最佳解答:In the figure, PXA and PYB are tangents to the circle at X and Y respectively. If XY = XZ, which of the following must be true? I. a = c II. e = b III. a = b a = d (ext. opp
其他解答:
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