Question

Find the perimeter and the length of the diagonals of this parallelogram.

A(1, 2), B(5, 4), C(6, 7), D(2, 5)

We need to find P ( _ sqrt _ + 2 _ )
AC ( _ sqrt _ )
BD (sqrt 10)
I figured out B already..

Answer 1

Use distance formula

Answer 2

ok, but how?

Answer 3

Well...Do you know the distance formula? What is it?

Answer 4

no, i dont know

Answer 5

http://www.purplemath.com/modules/distform.htm
Please use this website :)

Answer 6

thanks