In the diagram, PQ and RS are chords of a circle centre O which meet at T outside the circle. If TP = 24cm. TQ = 8cm and TS = 12cm, find TR.
Attached Figure / Diagram
A
16cm
B
14cm
C
12cm
D
8cm
Verified Correct Answer: A.
Step-by-Step Mathematical Solution
PT x QT = TR x TS
24 x 8 = TR x 12
TR = \(\frac{24 \times 8}{12}\)
= = 16cm
Source: Myschool Past Questions Archive (Record #32833)