11-04-2015
Mathematics

Answered

The triangles shown are similar.

What is the value of x?

A.
12

B.
15

C.
20

D.
13

The triangles shown are similar What is the value of x A 12 B 15 C 20 D 13 class=

The triangles shown are similar What is the value of x A 12 B 15 C 20 D 13 class=

Answer :

konrad509 konrad509

11-04-2015

[tex]\dfrac{x}{9}=\dfrac{5}{3}\\ \dfrac{x}{9}=\dfrac{15}{9}\\ x=15[/tex]

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thompzac thompzac

11-04-2015

15, because 3 goes into 9, 3 times and, 4 goes into 12, 3 times therefore x has to follow this rule because these 2 triangles are similar and because it already gives you 5 just take 5*3=15 there is your answer enjoy!=)

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