Question

Chord JK intersects chord ST at point L. Find the length of St. If necessary, round to the tenths place.

A. 6.2

B. 7

C. 19

D. 84

Answer 1

(C)19

Explanation:

The diagram is drawn and attached.

Using the intersecting chord theorem

SL X LT = JL X LK

x X 12 = 14(x-1)

12x=14x-14

12x-14x=-14

-2x=-14

x=7

Therefore:

ST= SL + LT

=x+12

=7+12

ST=19

The correct option is C