中國(guó)有書讀百遍，其義自見的古諺，一直在強(qiáng)調(diào)重復(fù)練習(xí)的重要性。多看書，勤做題是大有裨益的。 為您提供了“GRE數(shù)學(xué)重要知識(shí)點(diǎn)：Geometric Figures”，歡迎閱讀參考！更多相關(guān)訊息請(qǐng)關(guān)注！
Geometric Figures
If a point is selected at random inside a geometric figure, then the probability that the selected point lies inside a particular region is the ratio of their areas:
area of the particular region inside the figure/area of the whole figure.
Example:
The probability that a randomly selected point within the square lies inside the circle=area of circle/area of square=∏r2/(4r2)= ∏/4.
Remember:
If the particular region is not completely inside the figure, then use only the area that is inside the figure.