You are Here: Home >< Maths

# HOw to solve this ? watch

1. plz help me with this ..

2. Hi saravanr

We are not allowed to give explicit help... just kind of promptings ?

For this one you could make the shape into a cyclic quadrilateral ...
3. Can you show that y=2t and x=2z? THis is teh way I did it. Have a go and post what you can do.
4. But how is y=2t and x=2z ?
5. (Original post by saravananr)
But how is y=2t and x=2z ?
I'll get you started.

Think about angle OCA, if you knew that in terms of t then you could find y in terms of t. Also you know that triangle OBC is isosolees (no idea how to spell that, sorry). Additionally the angles in a triangle add up to 180. Can you use that to find angle OCA in terms of t?
6. (Original post by james22)
isosolees (no idea how to spell that, sorry
Isosceles.
7. thankyou very much .
I have finally found it

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 3, 2013
Today on TSR

### Edexcel C2 Core Unofficial Markscheme!

Find out how you've done here

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams