Answer in Geometry
Let’s consider any quadrilateral. What is The sum of it’s interior angles in degrees?
A quadrilateral has 4 sides. From this idea, the sum of its interior angles will be equal to the sum of interior angles of n−2 triangles.
number of triangles in this case = 4-2= 2 triangles
interior angles of a triangle add up to 180o.
for the two triangles, “2times 180n^o=360^o”
Thus, the sum of the interior angles of any quadrilateral is 360°.
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