Please could someone help me with these questions sorry about the scribbling on one page I got stuck

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18-01-2015
Mathematics

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Please could someone help me with these questions sorry about the scribbling on one page I got stuck

Sagot :

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Annavanwidn Annavanwidn · Answer 1 · 2015-01-18T04:00:05-05:00

question 4
So the polygon has 10 sides, to calculate how much all the interior angles are summed up, you have to see how many triangles you can fit into the polygon (this works for any polygon), in this case it is 8 (see file attached). Therefore you do 8 x 180 = 1440, so the overall angle is 1440º. Now you do 1440 : 10, because there are 10 equal angles, and that is 144º.
Every angle has 144º

question 5
Bearings are always measured clockwise and you always start north. You are at point A and want to go to point B, how much do you have to turn (clockwise!!)?
345º

Sagot :

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