The triangles are similar.
What is the value of x?
Enter your answer in the box.
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Answer: 16 units
Step-by-step explanation:
In similar triangles, the sides keep the same ratio, in this case 3:4:5.
Thus, because 12 is 3*4 and 20 is 5*4, x must be 4*4, or 16.
Hope it helps <3 :D