The two triangles given in the diagram are said to be similar, so that their sides can be compared. Therefore, the width of the oil spill is 50 km.
A triangle is a figure with three sides. Two or more triangles are said to be similar if and only if their sides have relating figures. Thus, to determine the width of the oil spill, the two given triangles are to be compared. This would result to:
[tex]\frac{20}{40}[/tex] = [tex]\frac{25}{x}[/tex]
x = [tex]\frac{40*25}{20}[/tex]
= [tex]\frac{1000}{20}[/tex]
= 50
x = 50 km
Therefore the width of the oil spill is 50 km.
For more on similar triangles, check: https://brainly.com/question/16983333
