this is a pentagon - the sum of the 5 internal angles is 540 degrees.
OpenStudy (welshfella):
So add up the 4 given angles and subtract the total from 540.
OpenStudy (patrickweewoos):
So what do I do with 540?
OpenStudy (leema35):
151 will be your answer
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OpenStudy (moldybubblegum11):
its not 151
OpenStudy (patrickweewoos):
I got 389
OpenStudy (welshfella):
@ leema please dont give direct answers Read Code of Contact.
OpenStudy (welshfella):
x = 540 - (90 + 107 + 144 + 138)
OpenStudy (moldybubblegum11):
it would be -151
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OpenStudy (patrickweewoos):
BTW the are only 3 numbers given and the 4th is an x
OpenStudy (welshfella):
No the square means the angle is 90 degrees
OpenStudy (welshfella):
|dw:1473963423604:dw|
OpenStudy (moldybubblegum11):
i think it would be 45
OpenStudy (welshfella):
nope
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OpenStudy (patrickweewoos):
a bit wild but I got 258,660
OpenStudy (welshfella):
use your calculator to add the 4 angles
OpenStudy (welshfella):
lol!! thats is wild!!! No where near that!
OpenStudy (patrickweewoos):
479
OpenStudy (welshfella):
now all you need do is calculate
540 - 479
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OpenStudy (moldybubblegum11):
61?
OpenStudy (patrickweewoos):
61
OpenStudy (welshfella):
yea x = 61 degrees
OpenStudy (patrickweewoos):
OMG THANK YOU @welshfella
OpenStudy (welshfella):
to calculate the total internal angles of a plygon of side n use the formula
total angles = 180 (n - 2)
so for a hexagon (6 sides 0 its
180 (6 - 2) = 180 * 4 = 720 degrees.