Pixel:

Exterior angle

2 months ago
Pixel:

1 attachment
2 months ago
Pixel:

Exterior angles = 360 360/7~51.42 =51.4

2 months ago
jhonyy9:

this|dw:1537391130728:dw| suppose this is a regular 7 sides polygon

2 months ago
jhonyy9:

how you get the measure of an exterior engle ?

2 months ago
Pixel:

all exterior angles = 360*?

2 months ago
jhonyy9:

moment one interior angle how many degree will have ?

2 months ago
Pixel:

900/7 ~129

2 months ago
jhonyy9:

and so you know that one interior angle toghether with exterior angle need making 360 degrees yes ?

2 months ago
Pixel:

yes

2 months ago
Pixel:

So Interior + exterior = 360 Degrees

2 months ago
Pixel:

just one

2 months ago
jhonyy9:

exactly

2 months ago
jhonyy9:

yes than you know the measure of one interior angle you can calcule easy the measure of one exterior angle

2 months ago
jhonyy9:

ok. ?

2 months ago
Pixel:

i think so

2 months ago
jhonyy9:

this is the best easy way

2 months ago
Pixel:

so 129 + x = 360 360 - 129 = x x = 231?

2 months ago
jhonyy9:

yes right

2 months ago
jhonyy9:

than this 129 is the measure of one interior angle

2 months ago
Pixel:

Okay, i need one measure of an exterior angle, and all exterior angles = 360

2 months ago
Pixel:

51.4 x 7 = 359.8

2 months ago
jhonyy9:

this 51,4 degrees is the central angle of a regular 7 sides polygon yes ?

2 months ago
Pixel:

No, Im saying one exterior angle of a 7 side Polygon equals 51,4

2 months ago
Pixel:

Also, What language do you speak if it makes it easier i can use a translator

2 months ago
jhonyy9:

this is impossibile bc. than you see my posted drawn there tan exterior angle is greater than 100 degrees - no ? pardon for my english but this not is my mather language - sorry

2 months ago
Pixel:

I know it's fine i can understand you. And yes if you add a line to the outside it makes it obtuse

2 months ago
jhonyy9:

ok. so than you see this my drawn how you think that you can calcule the measure of an exterior angle ? using these traingles

2 months ago
jhonyy9:

these triangles

2 months ago
jhonyy9:

use what you know that one triangle has total angle measure of 180 degrees and you know that the central angle maesure is 51,4 degrees and again you know that the second and 3rd angles are congruent

2 months ago
Pixel:

|dw:1537392297014:dw|

2 months ago
Pixel:

its terrible but just go with it

2 months ago
Pixel:

Pot să folosesc un traducător pentru a vorbi în limba dvs., dacă doriți să faceți acest lucru mai ușor

2 months ago
jhonyy9:

180-51,4 = x so x/2 is the measure of second and 3rd angle and you know that ohhh mamá hai sá vorbim románeste atunci

2 months ago
Pixel:

180 - 51,4 = 128,6/2 = 64,3

2 months ago
jhonyy9:

yes but now you need using what you know that the measure of an exterior angle together with this 128,6 make 360 degrees yes ?

2 months ago
Pixel:

128,6 + 129 = 257,6

2 months ago
jhonyy9:

check please my posted drawn above

2 months ago
Pixel:

Okay hold on let me start over, the sum of all exterior angles is 360

2 months ago
Pixel:

there are 7 exterior angles

2 months ago
Pixel:

360 / 7 = 54.1

2 months ago
jhonyy9:

no this is the measure of an interior angle

2 months ago
Pixel:

Oh

2 months ago
Pixel:

Okay

2 months ago
Pixel:

So central angle = 54.1

2 months ago
jhonyy9:

@ThisGirlPretty please do you can help me making more understandably

2 months ago
Pixel:

interior = 129

2 months ago
jhonyy9:

128,6

2 months ago
Pixel:

128.6 + x = exterior angle?

2 months ago
jhonyy9:

|dw:1537392880359:dw|

2 months ago
jhonyy9:

360 - 128,6 = exterior angle measure

2 months ago
jhonyy9:

ok. ?

2 months ago
Pixel:

okay

2 months ago
jhonyy9:

precis ?

2 months ago
Pixel:

231.4

2 months ago
Pixel:

231,4

2 months ago
jhonyy9:

yes so thia is the exterior angle maesure of a 7 side regular polygon

2 months ago
jhonyy9:

pixel do you understand it now sure ?

2 months ago
Pixel:

so 231,4 is the final answer

2 months ago
jhonyy9:

yes bc. than you assume this 231,4 with this 128,6 you get 360 degrees

2 months ago
Pixel:

Yes Thank

2 months ago
jhonyy9:

try see it in this way - this point A let being the central point of a circle you know that this drawn part has 128,6 degrees so what reamained till 360 degrees bc. you know that a circle has 360 degrees so in this way will get easy the measure of an extreior angle with 360-128,46 yes ?

2 months ago
jhonyy9:

@ThisGirlPretty please do you understand this way ?

2 months ago
jhonyy9:

pixel questions ?

2 months ago
Pixel:

one more sorry i had to do something

2 months ago
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