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A regular hexagon and a regular octagon are joined work out angle x watch

1. help
2. Use exterior angles (each shape adds up to 360) to find interior angles, add those together and take away from 360.
3. (Original post by Vikingninja)
Use exterior angles (each shape adds up to 360) to find interior angles, add those together and take away from 360.
Dont even need to do that. angle x is just the two exterior angles added together.
4. (Original post by Dumbbishh95)
help
Have you done any work to try and answer?

(Original post by an_atheist)
Dont even need to do that. angle x is just the two exterior angles added together.
if you do that you get 255 deg.
I'm sure that ain't right..
5. (Original post by ThatsAGoodOne349)
Have you done any work to try and answer?

if you do that you get 255 deg.
I'm sure that ain't right..
255 deg is the two interior angles added together. Exterior angles are the angles that each side turns from the the side before it.
6. (Original post by GrabDrop)
255 deg is the two interior angles added together. Exterior angles are the angles that each side turns from the the side before it.
thats why i said it aint right... - I mean it is sort of right just said incorrectly.
they said exterior not interior...
(im trying to avoid cards here...)
that x angle is an exterior angle to the shapes, and you have interiors...
7. (Original post by Dumbbishh95)
help
x = 105
8. (Original post by m-k1)
x = 105
Because 360 (angles in a circle) - interior angle of hexagon (120) - interior angle of octagon (135) = 105
9. (Original post by ThatsAGoodOne349)
thats why i said it aint right... - I mean it is sort of right just said incorrectly.
they said exterior not interior...
(im trying to avoid cards here...)
that x angle is an exterior angle to the shapes, and you have interiors...
I don't understand what you just said. You just work out the exterior of each shape and add them up.
10. Finally a question easy enough that I can answer. I took maths and physics at Alevel but forgotten it all lol.

Theres a bunch of different ways to work out it. This is the easiest I can see.

inner angle of hexagon:

720 / 6 = 120

inner angle octagon:

1080 / 8 = 135

angle of x:

360 - (135 + 120) = 105

x = 105

In case you don't understand. all the angles around a point add up to 360. So you take off the other 2 angles from 360.

Working out the inner angles from regular shapes is easy you can just google it.

(Original post by ThatsAGoodOne349)
t
thats where 255 comes from. He missed the last step lol.
11. (Original post by GrabDrop)
I don't understand what you just said. You just work out the exterior of each shape and add them up.
x isn't gonna be 255...
Finally a question easy enough that I can answer. I took maths and physics at Alevel but forgotten it all lol.

Theres a bunch of different ways to work out it. This is the easiest I can see.

inner angle of hexagon:

720 / 6 = 120

inner angle octagon:

1080 / 8 = 135

angle of x:

360 - (135 + 120) = 105

x = 105

In case you don't understand. all the angles around a point add up to 360. So you take off the other 2 angles from 360.

Working out the inner angles from regular shapes is easy you can just google it.

thats where 255 comes from. He missed the last step lol.
it was purpose..
it's called full work otherwise..
12. (Original post by ThatsAGoodOne349)
x isn't gonna be 255...
Yeah and 255 isn't the sum of the two exterior angles ,105 is
13. (Original post by GrabDrop)
Yeah and 255 isn't the sum of the two exterior angles ,105 is
I realised once someone said 255 lol
14. Hi everyone, please don't post full solutions in the maths forum. The guidelines are given here.

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