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Amiraneli [1.4K]
3 years ago
15

Show that the sum of the measures of the external angles of any polygon is 360°. [ HINT:- Draw three different polygons like a t

riangle, quadrilateral, pentagon. Extend each side, then measure the exterior angles from there. Finally, find the sum of measures of all exterior angles of each polygon.]
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
5 0

basically get a shape

eg we will work with triangles,, add angles to the inside,, ensuring they add up to 180 (because angles in a triangle add up to 180)

now that we have the angles,, extend each side with a line to show the exterior angles.

we know that angles on a line add up to 180,, so to find the external angle,, we can use our internal angle

you would use:

[ 180- internal angle]

do this for all external angles

add all your answers together,, should equal to 180

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