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MrRoyal

The length RT is 18

How to determine the length RT?

The given parameters are:

  • S is between R and T
  • The distance between R and T is 3 times the distance between R and S

This means that

RT = RS + ST

Where

RT = 3RS

So, we have

3RS = RS + ST

Evaluate

2RS = ST

Also, we have

ST = 12

This gives

2RS = 12

RS = 6

Recall that RT = 3RS

RT = 3 * 6

RT = 18

Hence, the length RT is 18

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