# maths

Watch
Announcements
#1
James draws an irregular polygon. Its smallest angle is 35 degrees. James then enlarges his polygon by scale factor 5. What size is the polygons smallest angle now?
0
2 years ago
#2
(Original post by Maths1210)
James draws an irregular polygon. Its smallest angle is 35 degrees. James then enlarges his polygon by scale factor 5. What size is the polygons smallest angle now?
What do you think?
0
#3
(Original post by RDKGames)
What do you think?
could it be 5 times 35 degrees so 175? But then the whole interior has to add to 360 and it would have to be less than 72 degrees. (360 divided by 5). So that would be wrong.
0
2 years ago
#4
(Original post by Maths1210)
could it be 5 times 35 degrees so 175? But then the whole interior has to add to 360 and it would have to be less than 72 degrees. (360 divided by 5). So that would be wrong.
Well, I can tell you that it's neither of those.

Just draw some irregular polygon of your own choice (like a triangle for example), then scale it by 2 as an example, see how the angles change, if at all.
0
#5
(Original post by RDKGames)
Well, I can tell you that it's neither of those.

Just draw some irregular polygon of your own choice (like a triangle for example), then scale it by 2 as an example, see how the angles change, if at all.
I did that and they stayed at 45, 45, and 90 so the answer to the question would just be 36 as the angles stay the same it is only the sides that
are enlarged?
0
2 years ago
#6
(Original post by Maths1210)
I did that and they stayed at 45, 45, and 90 so the answer to the question would just be 36 as the angles stay the same it is only the sides that
are enlarged?
35* but yeah, exactly that.
0
#7
(Original post by RDKGames)
35* but yeah, exactly that.
okay thank you.
0
X

new posts Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

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

### Poll

Join the discussion

#### Current uni students - are you thinking of dropping out of university?

Yes, I'm seriously considering dropping out (86)
13.94%
I'm not sure (29)
4.7%
No, I'm going to stick it out for now (196)
31.77%
I have already dropped out (13)
2.11%
I'm not a current university student (293)
47.49%