Respuesta :

[tex] \dfrac{12}{40} = \dfrac{3}{x} [/tex]

Cross multiply:
[tex]12x = 3 \times 40[/tex]

Evaluate RHS:
[tex]12x = 120[/tex]

Divide both sides by 12:
[tex]x = 10[/tex]
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Answer:

[tex]x=10 units[/tex]

Step-by-step explanation:

Given: The polygons ABCD and JKLM are similar.

To find: The value of x.

Solution: Since, the given polygons are similar, therefore using the similarity condition, we have

[tex]\frac{AD}{JM}=\frac{CD}{LM}[/tex]

Substituting the given values, we get

[tex]\frac{12}{40}=\frac{3}{x}[/tex]

On cross multiplying, we get

[tex]\frac{3\times40}{12}=x[/tex]

[tex]x=10 units[/tex]

Therefore, the value of x is 10 units.

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