161k views
0 votes
Given by and vwz,what is the perimeter of the trapezoid WXYZ ..

Given by and vwz,what is the perimeter of the trapezoid WXYZ ..-example-1
User Raffian
by
4.9k points

1 Answer

3 votes

We are given two similar triangles, therefore, we have the following relationship:


(VZ)/(ZY)=(VW)/(WX)

Solving for VW:


VW=WX*(VZ)/(ZY)

Replacing in the equation:


VW=36*((44-27.5))/(27.5)

Solving the operations:


VW=21.6

Now we use the Pythagorean theorem to determine the length of WZ, that is:


WZ=\sqrt[]{(VW)^2-(VZ)^2}

Replacing:


WZ=\sqrt[]{(21.6)^2-(44-27.5)^2}

Solving the operations:


\begin{gathered} WZ=\sqrt[]{466.56-272.25} \\ WZ=\sqrt[]{194.31} \\ WZ=13.9 \end{gathered}

Now we find XY using the following relationship:


(XY)/(VY)=(WZ)/(VZ)

Solving for XY:


XY=VY*(WZ)/(VZ)

Replacing the values:


XY=44*(13.9)/(44-27.5)

Solving the operations:


XY=37.1

The perimeter of the figure is:


P=XW+WZ+ZY+XY

Replacing:


P=36+13.9+27.5+37.1

Solving the operations:


P=114.5

User Jalon
by
4.2k points