From concept of similar triangles, the value of x is Option (C) 5 .
What are similar triangles ?
Similar triangles are triangles that have the same shape but their sizes, dimensions may vary. All equilateral triangle, squares of any shape are example of similar objects. If two triangles are similar triangles then their corresponding angles are congruent and the corresponding sides are in equal proportion.
How to find the corresponding side using concept of proportion ?
We know from concept of similar triangles, the corresponding sides are in equal proportion.
Both the triangle given in the diagram are similar.
The unknown side given is x .
Using proportion concept,
⇒ [tex]\frac{15}{3} = \frac{25}{x}[/tex]
⇒ [tex]x = \frac{25}{5}[/tex]
∴ [tex]x = 5[/tex]
Thus, From concept of similar triangles, the value of x is Option (C) 5.
To learn more about concepts of similar triangles, refer -
https://brainly.com/question/8474273
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