# Math Is Fun Forum

Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫  π  -¹ ² ³ °

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## #1 2015-03-03 19:36:24

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

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## #2 2015-03-03 20:34:18

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.)

Bassaricyon neblina

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## #3 2015-03-03 20:59:07

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

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## #4 2015-03-03 22:20:32

Bob
Administrator
Registered: 2010-06-20
Posts: 10,503

### 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

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

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## #5 2015-03-04 02:20:43

Maou-Sama
Member
Registered: 2015-03-03
Posts: 9

thanks a lot

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