仰望險(xiǎn)峰，只能感嘆它的高大，勇攀險(xiǎn)峰，才能知曉自己的高大。對(duì)于考試，不拼一把，怎能知道自己不可以？為大家準(zhǔn)備了“GRE數(shù)學(xué)考點(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.
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.