It is: 40 degrees and 90 degrees respectively
A regular trapezoid (!) is a square. And each interior angle of a square is 90 degrees.
Each exterior angle of a regular octagon measures 45 degrees
Providing that it's a regular decagon then each exterior angle will measure 36 degrees
Each interior angle measures 140 degrees
Each exterior angle will measure 9 degrees
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
Providing that it's a regular decagon then each exterior angle will measure 36 degrees
It is: 40 degrees and 90 degrees respectively
Tha will depend on how many sides the regular polygon has.
15 degrees
135 Each interior angle of a regular octagon measures 135 degrees.
A regular trapezoid (!) is a square. And each interior angle of a square is 90 degrees.
Each exterior angle of a regular octagon measures 45 degrees
Providing that it is a regular hexagon then each exterior angle will measure 60 degrees
Providing that it is a regular polygon then each exterior angle will measure 12 degrees
Providing that it's a regular decagon then each exterior angle will measure 36 degrees