You are Here: Home >< Maths

Maths year 11 Watch

1. (Original post by z_o_e)
Now angle d

Is 360-144

Posted from TSR Mobile
Angle d? Do you mean the 2 angles around vertex D? The interior is 144 so the exterior is 360-144. Not sure why you'd need that though.
2. (Original post by RDKGames)
Angle d? Do you mean the 2 angles around vertex D? The interior is 144 so the exterior is 360-144. Not sure why you'd need that though.
Because it says work out the size of angle DCX

Posted from TSR Mobile
3. (Original post by z_o_e)
Because it says work out the size of angle DCX

Posted from TSR Mobile
You're misinterpreting.

Angle DCX means the angle made by one line which is D to C, and the other which is C to X. So you're looking at the angles around C. It doesn't mean you need to work out angles at each of these points...
4. (Original post by RDKGames)
You're misinterpreting.

Angle DCX means the angle made by one line which is D to C, and the other which is C to X. It doesn't mean you need to work out angles at each of these points...
Ooooh

I'm on this now x

Posted from TSR Mobile
Attached Images

5. (Original post by z_o_e)
Ooooh

I'm on this now x

Posted from TSR Mobile
You should notice that the triangle is isosceles and use the properties of that type of triangle to find x.
6. (Original post by RDKGames)
You should notice that the triangle is isosceles and use the properties of that type of triangle to find x.
180-144/2?

Posted from TSR Mobile
7. (Original post by z_o_e)
180-144/2?

Posted from TSR Mobile
Yes.
8. (Original post by RDKGames)
Yes.
Woowe. I'm improving :3

Posted from TSR Mobile
9. Posted from TSR Mobile
Attached Images

10. Correct. See, maths is so easy!
11. (Original post by RDKGames)
Correct. See, maths is so easy!

Posted from TSR Mobile
Attached Images

12. (Original post by z_o_e)

Posted from TSR Mobile
The perimeter is given when you add up all the side lengths. So add up all these 4 sides and make that expression equal to 32 because we're told that's what the perimeter is equal to. Then you can solve for x.
13. (Original post by RDKGames)
The perimeter is given when you add up all the side lengths. So add up all these 4 sides and make that expression equal to 32 because we're told that's what the perimeter is equal to. Then you can solve for x.
How would I lay this question out?

Posted from TSR Mobile
14. (Original post by z_o_e)
How would I lay this question out?

Posted from TSR Mobile
Well if it makes it easier for you, you can label the sides which are not labelled with their respective lengths in terms of x.

Then simply take each side into account when you add them up, there's not much layout other than that.
15. (Original post by RDKGames)
Well if it makes it easier for you, you can label the sides which are not labelled with their respective lengths in terms of x.

Then simply take each side into account when you add them up, there's not much layout other than that.

Posted from TSR Mobile
Attached Images

16. Posted from TSR Mobile
Attached Images

17. x+6+x+6=2x+12
4+3x+4+3x=8+6x

Posted from TSR Mobile
18. (Original post by HFancy1997)
x+6+x+6=2x+12
4+3x+4+3x=8+6x

Posted from TSR Mobile
Omgg I multiplied some of them!!

Posted from TSR Mobile
19. (Original post by HFancy1997)
x+6+x+6=2x+12
4+3x+4+3x=8+6x

Posted from TSR Mobile
Nah mate addition sign is just the multiplication sign rotated 45 degrees so you still technically multiply... :-)
20. Here

Posted from TSR Mobile
Attached Images

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: December 10, 2016
Today on TSR

What should I do?

US couple arrested - 13 children chained up

Discussions on TSR

• Latest
• See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources
Discussions on TSR

• Latest
• See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE