15. An unknown quadrilateral has these points: A(0,-3) B(6,-3) C(9,1) D(3,1) What is the length of side BC?(hint: use the distance formula to find how far apart point B is from C) (1 point) Responses BC=7 BC=7 BC=5 BC=5 BC=6 BC=6 BC= 4 BC= 4

Answer 1

To find the length of side BC, we can use the distance formula.

The distance formula is √((x2-x1)^2 + (y2-y1)^2).

Using the coordinates of points B and C, we have:
BC = √((9-6)^2 + (1-(-3))^2)
BC = √(3^2 + 4^2)
BC = √(9 + 16)
BC = √25
BC = 5

Therefore, the length of side BC is 5.