1984 年

數學 · 共 52 題 · 點擊選項即時核對答案

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51.

In the figure, $AB$ is a diameter of the circle. $AP=AQ$ . $AB=10$ and $BP=8$ . $PQ=$

52.

In the figure, the chords $BA$ and $CD$ , when produced, meet at $P$ . The chords $AD$ and $BC$ , when produced, meet at $Q$ . $\angle B=$