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25.2:360 ::x:5100
Or 25.2 x ------=----- then cross multiply, 360x=5100*25.2
Exterior angles of polygons always add up to 360 degrees.
A pentagon has 5 sides, so divide 360 degrees by 5 sides.
360/5 = 72
One exterior angle of a regular pentagon (all 5 sides and angles are equal) is 72 degrees.
Did you mean to write it out? 42-2h?
