Higher Maths
posted by R0SS .
Show that these three points , P(8,3), Q(3,4),R(6,7), Form a right angled triangle and name the right angle?
There are two ways of doing this:
1) determine the slopes for all lines, and the pair that have a right angle will have a negative inverse slope.
2) determine the distances PQ, QR, and RP. If any one distance squared is equal to the sum of the other distances squared, it is a right triangle.
If needed, I will be happy to critique your thinking or work.
thats the stuff!
Thank you very much.
Ok i'll get working on that.
ok i need some more help,
This is what i have done:
Mpq = y2y1
_____
x2x1
43
____
3(8)
= 1/5

Mqr = y2y1
_____
x2x1
= 7 3
______
8(8)
=  11
____
3
= 3.6

Mpq = y2y1
_____
x2x1
= 73
______
6(8)
= 10
______
2
= 5

Ok that's the gradents of all 3 sides,
How do i Form a Right angled triangle and name the right angle?
Thanks for the help!
Show that these three points , P(8,3), Q(3,4),R(6,7), Form a right angled triangle and name the right angle?
Look one line you have has a slope of 5, and another line has slope of 1/5.
They are at right angles...
So the right angle must be..the common point of those two lines. I don't follow your notation on the Mpq, but you can figure it from here.
whats is a quartile, and what does a quadratic sequence mean and do?
Do you know any websites that gives you step by step instructions on particular questions on trig and circles that you can't answer?
How do you slove word problems regarding slopes?
Respond to this Question
Similar Questions

math
this problem seems with too many numbers that i don't know where to start. or even how.I have to answer the problem on top not the one that says number 27. The problem: Geometry. For the floor plans given in exercise 27, determine … 
precalc
determine if the following lines are parallel, perpendicular or neither. Explain your reasoning. 2x+3y=3 2x+3y=3 Rewrite them in y = mx + b form to get the slopes, m. The lines are parallel of the slopes are the same. They are perpendicular … 
Geometry
In a rightangled triangle, the two sides that form the right angle are both 5 inches. Calculate the length of the other side (the hypotenuse) I Calculate 7.07 inches. Is this correct? 
math
in a rightangled triangle the two sides that form the right angle are both 5 inches. calculate the length of the other side (the hypotenuse). 
math CA
1. What are the next two terms in each sequence? 
geometry
the points A(5,,4),b(7,6) and c (5,2) are the coordinates of right angled triangle .which angle is right angle? 
Maths
In a right angled triangle, two of the angles are in the ratio 6:13. Find the 3rd angle 
maths
A right angled triangle has sides a and b where a<b. If the right angle is bisected then then find the distance between orthocentres of the smaller triangles using coordinate geometry. 
maths
A right angled triangle has sides a and b where a<b. If the right angle is bisected then then find the distance between orthocentres of the smaller triangles using coordinate geometry. 
trigonometry  maths
The difference between the two acute angles of a right angled triangle is 2pie /5 radians . Express the angle of the triangle in degree and grade .