The following two triangles are similar to each other. Find the length of the side labelled x.
There are two triangles. The one on the right is smaller, and the one on the left is larger. For the bigger triangle, its longest side is marked as x, and its right side is marked as 21 m. For the smaller triangle, its longest side is marked as 45.5 m, and its right side is marked as 17.5 m.
Use m for meters.
The missing side’s length is