Find the perimeter of a triangle with vertices (2,4) (-1,3) and (2, -3).
(show your work on graph paper)

Question

Find the perimeter of a triangle with vertices (2,4) (-1,3) and (2, -3).
(show your work on graph paper)

amistre64 · Answer

we need 3 distance

how do we determine distance between 2 points?

amistre64 · Answer

A (2, 4)   B(-1,3)   C(2, -3)
   -2-4     -2-4      -2 -4
   --------------------
    0,0      -3,-1     0,-7

AC = 7 by default

AB = the square sum and sqrt of its parts
     = sqrt(9+1) = sqrt(10)

now we just need the measure from B to C to add in

amistre64 · Answer

B(-1,3)    C(2,-3)
   1 -3        1 -3
---------------
     0,0         3,0

by default, id say BC = 3

amistre64 · Answer

our perimeter then should be:  7+3+sqrt(10)

anonymous · Answer

so the answer is 10+sqrt(10)?

anonymous · Answer

thanks a lot!

anonymous · Answer

can u show how to do it using graph paper?

amistre64 · Answer

no, i cant lol

amistre64 · Answer

you plot your points and determine the distance from one point to another using the same formulas

amistre64 · Answer

or a ruler i spose

anonymous · Answer

ok thanks

anonymous · Answer

can you check on my other question...i need help lol