Math Is Fun Forum

Maou-Sama

Member

Registered: 2015-03-03

Posts: 9

maths A-level past year circles

I forgot the formula for the angle of BOAT trapezium ,please help
http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_s06_qp_1.pdf
question 7

Olinguito

Member

Registered: 2014-08-12

Posts: 649

Re: maths A-level past year circles

It's not a trapezium; it's a kite.

Find the area of triangle OAT and multiply by 2. (Then subtract the area of the sector of the circle.)

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Bassaricyon neblina

Maou-Sama

Member

Registered: 2015-03-03

Posts: 9

Re: maths A-level past year circles

thanks a lot
how do you post the image anyway

Bob

Administrator

Registered: 2010-06-20

Posts: 10,618

Re: maths A-level past year circles

hi Maou-Sama

Welcome to the forum.

There are many on-line sites that will let you store an image and get the bbCode to embed in your post.  I use imgur.

Here's the latest one that I did:

[img]http://i.imgur.com/P72QVyZ.gif[/img]

Hope that helps,

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

Maou-Sama

Member

Registered: 2015-03-03

Posts: 9

Re: maths A-level past year circles

thanks a lot