







Can determine if it is scalene, isosceles, or equilateral 
20101201 

Jessie pose la question : find the measures of the sides of triangle KPL and classify each triangle by its sides. my first problem would be K(3,2) P(2,1) L(2,3) ...The three points they give you are the vertices of the triangle and you need to match them up. Draw the triangle and write in the vertices and the related point with the vertex. You will then do the distance formula three times to find the distance of all three sides. Once you have the three sides you can determine if it is scalene, isosceles, or equilateral...using the distance formula how do i solve this? Penny Nom lui répond. 





The Pythagorean theorem 
20090624 

supreet pose la question : What are some realworld applications of the Pythagorean theorem?
and
How are the Pythagorean theorem and the distance formula related? Harley Weston lui répond. 





How to solve related rates problems 
20071027 

David pose la question : Can you plz explain how and where you come up with an equation to solve this?
Find the rate of change of the distance between the origin and a moving point on the graph of y = sin x if dx/dt = 2 centimeters per second. Stephen La Rocque lui répond. 





Area of a triangle formed by three points on a graph 
20071026 

Betty pose la question : My question is 'find the are of a triangle whose vertices have
coordinates (3,5),(6,5), and (4,10) Stephen La Rocque lui répond. 





Circumscribing a golden cuboid with a sphere: surface areas 
20070614 

Ainslie pose la question : A golden cuboid is defined as a rectangular prism whose length, width and height are in the ratio of phi : 1 : 1/phi.
Prove that the ratio of the Surface Areas of the golden cuboid to that of the sphere that circumscribes it is Phi : Pi. Stephen La Rocque lui répond. 





A problem with distance 
20010116 

A student pose la question : For what values of a is the distance between P(a, 3) and Q(5, 2a) greater than the square root of 26. Penny Nom lui répond. 

