kei6 kei6
  • 20-03-2017
  • Mathematics
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What is the value of n

What is the value of n class=

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jessgrundy2014
jessgrundy2014 jessgrundy2014
  • 20-03-2017
so firstly you are given the external angles, to find the internal angles, you do 180-133=47

180-142=38
the internal angles in a triangle add up to 180, therefore it is
47+38=85
180-85=95
because you have to find the external angle=n you then need to take 95 away from 180
180-95=85
so the answer is A

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