Prove that the sum of angles of a quadrilateral is 360.
2 answers
360 or 360°
I assume you have seen the proof that the sum of angles of a triangle is 180°
If not you can find may using google.
Now, divide the quadrilateral into two triangles. Done.
In fact, extending the idea makes it easy to prove that the interior angles of an n-gon add up to
(n-2)*180°
If not you can find may using google.
Now, divide the quadrilateral into two triangles. Done.
In fact, extending the idea makes it easy to prove that the interior angles of an n-gon add up to
(n-2)*180°
1 answer