+0  
 
0
185
1
avatar+284 

The triangles are similar.
 

What is the value of x?


Enter your answer in the box.

x = 

 

PICTURE...https://static.k12.com/nextgen_media/assets/1544625-IM2_141011_020904.jpg

 

-Thanks

sii1lver  Feb 22, 2018

Best Answer 

 #1
avatar+7266 
+3

 

Notice that

 

3 * 5  =  15     and     5 * 5  =  25

 

We can see that the scale factor is  5 .

 

each side of the larger triangle  =  5 * the corresponding side of the smaller triangle

 

So....

 

3x + 8   =   5 * 4

 

3x + 8  =  20

                            Subtract  8  from both sides.

3x   =   12

                            Divide both sides by  4 .

x   =   4

hectictar  Feb 22, 2018
 #1
avatar+7266 
+3
Best Answer

 

Notice that

 

3 * 5  =  15     and     5 * 5  =  25

 

We can see that the scale factor is  5 .

 

each side of the larger triangle  =  5 * the corresponding side of the smaller triangle

 

So....

 

3x + 8   =   5 * 4

 

3x + 8  =  20

                            Subtract  8  from both sides.

3x   =   12

                            Divide both sides by  4 .

x   =   4

hectictar  Feb 22, 2018

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