Topic : Interior angle of triangle
Question : Find the interior angle of the triangle if sum of all the angles is equal to 171º.
Answer :
Each interior angle = (n-2) *180º / n = 171º
180ºn - 360º = 171ºn
+360º = +360º
180ºn = -171ºn + 360º
-171ºn = -171ºn
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9ºn/9º = 360º/9º
n = 40º
Showing posts with label Interior Angle of Triangle. Show all posts
Showing posts with label Interior Angle of Triangle. Show all posts
Sunday, March 15, 2009
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