In the diagram of the park, adf~ bcf. the crosswalk at point a is about 20 yd long.

Since the 2 triangles are similar, their sides are proportional.
You also know AD is 20 yards, since it tells you that is the crosswalk length at A.
So the proportion is :
50 / 120 = 20 / BC
Or
if you flip it over,
120 / 50 = BC / 20
 Then you can solve for BC.
120 / 50 = BC / 20
(20)(120/50) = BC
BC = 48

The approximate side length of the segment WX is given by

The approximate side length of the segment XY is given by

The approximate side length of the segment YZ is given by

The approximate side length of the segment ZW is given by

The approximate perimeter of quadrilateral WXYZ is

Step-by-step explanation:

The perimeter of a figure is the distance around a two dimensional body. In other words we can think perimeter as the distance of a body's boundary.

To find the approximate perimeter of the quadrilateral, all we need to do is to add its respective lengths.

Thus here the sum of its side length gives us the perimeter of the quadrilateral WXYZ.

The approximate perimeter of quadrilateral WXYZ is

The approximate side length of the segment WX is given by

The approximate side length of the segment XY is given by

The approximate side length of the segment YZ is given by

Total sum of lengths of the three sides of WXYZ is given by

Therefore the value of the other side ZW is given by