SOLUTION: A triangle has vertices J( 1, 2), K(-3,-1) and L(O,-5). (Hint: Draw a labelled diagram) a) Is the above triangle a right triangle? Show all work using analytical geometry tools

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Question 1180249: A triangle has vertices J( 1, 2), K(-3,-1) and L(O,-5). (Hint: Draw a labelled diagram)
a) Is the above triangle a right triangle? Show all work using analytical geometry tools to help support your answer. [6M]
b) Find the perimeter of the triangle

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!
a) Is the above triangle a right triangle? Show all work using analytical geometry tools to help support your answer. [6M]

J( , ), K(,) and L(,)



the above triangle a right triangle

b) Find the perimeter of the triangle
first find side lengths
find
Solved by pluggable solver: Distance Between 2 points
The distance formula is . Plug in the numbers,

The distance is 5.



find
Solved by pluggable solver: Distance Between 2 points
The distance formula is . Plug in the numbers,

The distance is 5.




find

Solved by pluggable solver: Distance Between 2 points
The distance formula is . Plug in the numbers,

The distance is 7.07106781186548.




perimeter is:



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