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Mathematics 8 Online
OpenStudy (narissa):

help

OpenStudy (narissa):

OpenStudy (narissa):

@horse_rider_133

OpenStudy (narissa):

do i add or multiply

OpenStudy (horse_rider_133):

try both and tell me the answers

OpenStudy (narissa):

539

OpenStudy (narissa):

im confused

OpenStudy (narissa):

@3mar

OpenStudy (horse_rider_133):

is that for multiply

OpenStudy (narissa):

adding but i have to find x so i dont know

OpenStudy (horse_rider_133):

i kinda dont know it sowwy again i am really stupid

OpenStudy (narissa):

no ur not im asking not u

OpenStudy (3mar):

Sorry for being late! It was an emergency call.

OpenStudy (horse_rider_133):

ok well i gtg go

OpenStudy (narissa):

its ok @3mar

OpenStudy (horse_rider_133):

@tshimp0629

OpenStudy (will.h):

X= 69 Explanation: I found the measure of the out-figure angles and they were 41+ 59+ 55+ 54 + 22 + 60 + x = 360 Solving for that X = 69

OpenStudy (3mar):

I am just looking for the rule!

OpenStudy (3mar):

I got it!

OpenStudy (3mar):

\[\angle=\frac{ 180(n-2) }{ n }\]

OpenStudy (3mar):

and the sum of all angles is \[180(n-2)\]

OpenStudy (3mar):

Hope that helps https://www.mathsisfun.com/geometry/interior-angles-polygons.html

OpenStudy (will.h):

That's not quite accurate

OpenStudy (will.h):

180(6-2)/6 = 120 degrees that means each angle in the figure will be equal to 120 degrees and that's not the case

OpenStudy (narissa):

so how do i do it?

OpenStudy (will.h):

How much does the adjacent angles equal to?

OpenStudy (narissa):

251?

OpenStudy (will.h):

180 degrees anyway find the measure of each exterior angle for example 180 - 120 = 60 degrees after finding all the measures of exterior angles set them equal to 360 degrees and solve

OpenStudy (will.h):

I did that and found the measure of the exterior angles 41+ 59+ 55+ 54 + 22 + 60 + x = 360 Then x = 69 And 69 + interior angle = 180 Interior angle = 111 (that's the one you looking for)

OpenStudy (narissa):

thank u one more please

OpenStudy (will.h):

Okay. In a new thread

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