Question

Show that the quadrilateral PQRS with vertices P(-1,2) Q(2,4) R(4,-2) and S(1,-3) is a rectangle and calculate its area. Somebody show me the steps please ? :) Thank you !

Answer 1

Twiddla?

Answer 2

I can show you on twiddla how to do this

Answer 3

We can do it here as well.

Answer 4

http://www.twiddla.com/solved

Answer 5

ermm im sorry but how do i use twiddla? ><

Answer 6

No, we need a grid to work from saifoo. She wants to SEE the steps