Question

In a circle, chords AB and CD intersect at R. If AR: RB=1: 4 and CR: RD=4: 9, compute the ratio AB: CD.

Answer 1

Use intersecting chord theorem.

Answer 2

What is it , we haven't learnt it

Answer 3

Wait may be we won't need it

Answer 4

Let me draw a figure. Or will you be so good to do that ?

Answer 5

i will do it

Answer 6

Great

Answer 7

Now can you compute AB:CD ?

Answer 8

Okay you must use intersecting chord theorem

Answer 9

I don't know the theorem , what is iy

Answer 10

Okay it basically says that:

AR.RB = CR. RD

Answer 11

*For the given figure ^^

Answer 12

Assume AR = x and CR = 4y

Answer 13

Now can you find out the answer ?

Answer 14

4x^2=36y^2

Answer 15

Perfect

Answer 16

I am getting 15/13

Answer 17

Perfectly correct

Answer 18

Well, there you go. Now I have to go. So, bye bye

Answer 19

Good Byew :)