Answer:
6 ft
Step-by-step explanation:
The product of lengths from the point of intersection of the chords to the circle is a constant. For these chords, that constant is ...
ST·TW = (4 ft)(12 ft) = 48 ft²
Then RT can be found from ...
RT·TV = 48 ft²
RT = (48 ft²)/TV = (48 ft²)/(8 ft)
RT = 6 ft
