Quadrilateral ABCD with vertices A(4, 3), B(4, -2), C(-4, -2) and D(-4, 3) is a rectangle, find the length of the diagonals.
A. in comments
B. 5
C. 8
D. in comments

Question

Quadrilateral ABCD with vertices A(4, 3), B(4, -2), C(-4, -2) and D(-4, 3) is a rectangle, find the length of the diagonals.
	A.	in comments
	B.	5
	C.	8
	D.	in comments

anonymous · Answer

A)$$\sqrt{89}$$
B) $$\sqrt{39}$$

anonymous · Answer

Ok so this forms a shape that can be divided into two to form two right triangles.

anonymous · Answer

So since we have the coordinates, you can use the distance formula to find the distance between the points.

anonymous · Answer

Distance formula is $$\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$$

anonymous · Answer

Can you go on from there?

anonymous · Answer

yes thank you :)