# Geometry

posted by
**Lacey**
.

Find the value of the variable and ST if S is between R and T.

RS=7a, ST=12a, RS=28

No clue what so ever how to do this.

posted by
**Lacey**
.

Find the value of the variable and ST if S is between R and T.

RS=7a, ST=12a, RS=28

No clue what so ever how to do this.