Question

Find the value of n + 6

132

113

62

119

Answer 1

@DanJS

Answer 2

do you remember the sum of the interior angles of a n sided polygon?

Answer 3

108 ?

Answer 4

n + 6 + n will equal the sum of the interior angles minus all the other given angles

Answer 5

sum of interior angles = 180*(n-2)

Answer 6

oh yeaa sorry 180

Answer 7

keep this as a reference
http://www.mathsisfun.com/geometry/interior-angles-polygons.html

Answer 8

The total of all the interior angles , is 720 for a 6 sided polygon

Answer 9

It is easy to figure out if you forget the formula, by drawing triangles in the polygon, and remembering each triangle adds to 180

Answer 10

135 + 62 + 151 + 140 + n + (n+6) = 720

find n

Answer 11

ok hold on

Answer 12

2n + 494 = 720
2n = 720 - 494
2n = 226
n = 113

Answer 13

looks good

Answer 14

thanks again :)

Answer 15

welcome

Answer 16

@Addicto_ remember the answer is looking for n+6, so it will be 119

Answer 17

oh so its not 113? @DanJS

Answer 18

you found that n=113, the question asks you what is n+6

Answer 19

ohhh i get it now

Answer 20

just caught that, wanted to make sure you got it

Answer 21

ok thanks so much!

Answer 22

yep