Question

Find the slope of each side Find the length of each side, Use the proof frame to write a statement that proves quadrilateral ABCD is a square using the information on the previous slides and the definition of a square

Answer 1

We can start finding the distance of the sides of our quadrilatteral, lenghts of AB, BC, CD and DA, if it is a square, they all need to be the same

We can see that all this side belongs to a right triangle of cathetus 3 and 4, so we can find the length using Pitagoras Theorem, as such:

$A\text{B}^2\text{ = 3}^2\text{ + 4}^2\text{ wich implies that AB = }\sqrt[]{25}\text{ so AB = 5}$