Question

NInstructions: Find the missing side length in the image below.??121810

Answer 1

For this problem, we are given a trapezoid divided into two parts and need to determine the value of the missing side.

The proportions need to be maintained on both sides, this means that if we divide the side of one of the parts by the length of the whole, the result should be equal on both sides. We have:

`\begin{gathered} (12)/(12+x)=(8)/(18)\\ \\ 8x+96=216\\ \\ 8x=120\\ \\ x=(120)/(8)=15 \end{gathered}`

The missing side is equal to 15.