The correct answer is b. 10
What are polygons?
Any two-dimensional geometric figure that has a finite number of sides is a polygon. Example- a triangle is a polygon.
What are similar polygons?
Any two polygons are said to be similar if their corresponding angles are congruent and the measures of their corresponding sides are proportional.
How to calculate the value of x?
Since the corresponding sides of these polygon are proportional,
We can write,
[tex]\frac{12}{40}=\frac{3}{x}\\[/tex]
By cross multiplication,
[tex]x=\frac{120}{12}[/tex]
⇒x= 10
The value of x is b. 10
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