Friday

March 27, 2015

March 27, 2015

Posted by **gorav** on Thursday, March 20, 2014 at 1:40am.

- geometry -
**Steve**, Thursday, March 20, 2014 at 5:19amif two of the points are a diameter apart, the triangle is a right triangle.

So, given that the first two points are on the same semi-circle, which they must be, then we want the probability that the third point is on the same semi-circle. If it is not, then the triangle will be acute, as all three arcs are less than 180 degrees.

So P = 1/2

**Answer this Question**

**Related Questions**

math - Three points are chosen uniformly at random from the perimeter of circle...

Maths - Let S be a set of 31 equally spaced points on a circle centered at O, ...

math - Let S be a set of 31 equally spaced points on a circle centered at O, and...

Maths - Let S be a set of 31 equally spaced points on a circle centered at O, ...

Geometry - Two points are chosen uniformly at random on the unit circle and ...

Geometry - Two points are chosen uniformly at random on the unit circle and ...

GEOMETRY - The squares of a 3×3 grid of unit squares are coloured randomly and ...

algebra - Two points are chosen uniformly at random on the unit circle and ...

maths - Consider a 25×25 grid of city streets. Let S be the points of ...

math - Consider a 25×25 grid of city streets. Let S be the points of ...