Question

Secant TQ and tangent TR intersect at point T. Chord SR and chord PQ intersect at point V. Find the values of x and y, round to the nearest tenth!

http://media.education2020.com/evresources/2092479_e6c8e3b7-e4f2-4d66-aae1-f4b662469b12.png

Answer 1

how long do you think is TQ? in "x" terms

Answer 2

idek

Answer 3

well look at the lines making up TQ

Answer 4

about 33

Answer 5

no..i meant about 21

Answer 6

9+12+x

Answer 7

well, 12 and x look like their the same length and then i just add 9 right?

Answer 8

yeap now... using the "cross-product" we can say that thus \(\bf TR^2=TP\cdot TQ\implies 15^2=9\cdot (9+x+12)\)

thus you can just solve for "x" to find "x" firstly

Answer 9

brb