How to reflect the object over the y axis

To reflect an object over the y-axis, you reflect each point over the y-axis and the connect them. To reflect a point over the y-axis, negate the x value and leave the y-value

Point x (-1,3) becomes (1,3)
Point y (2,1) becomes (-2,1)
Point z (-3,-3) becomes (3, -3)

Hope this helps!

≈ 11.2 units

Step-by-step explanation:

You can use SOH CAH TOA

In this case, use TOA.

tan(55) = 16/x

tan(55) * x = 16

x = 16/tan(55)

x = 16/1.428148006

x = 11.20332 units