Respuesta :

Answer:

TX=8, all sides of an equilateral triangle are congruent

Answer:

4√3

Step-by-step explanation:

I did a²+b²=c²

RX²+XT²=RT²  

4²+XT²=8²

16+XT²=64

XT²=48

√XT=√48

4√3

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