Answer:
A exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side.

it just so happen that √2 is an irrational number, so any product with it as a factor, will yield an irrational number as well.
factoid: Ancient Greeks were scared of irrational numbers, and they steered clear from √2.
The supplement of 30° is the angle that when added to 30° forms a straight angle (180° ).
Answer:
11+2x
Step-by-step explanation:
5+6=11
4x-2x=2x
Answer:
132, 390, 244, 492
Step-by-step explanation:
those are the answers in order