IT IS 900
THE METHOD IS
IT HAS 7 SIDES AND 2 TRIANGLES SO WE SUBTRACT
7-2=5
THEN THE SUM OF INTERIOR ANGLE OF TRIANGLE IS 180 SO
5 INTO 180 WILL GIVE YOU THE TOTAL NUMBER OF ANGLES
the center angle of any polygon is 360 degrees
120
30*
42
The interiior angles of a 15 sided polygon add up to 2340 degrees
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
A 16 sided polygon
The interior angle of an octdecagon, an 18 sided regular polygon, is 160o.
The measure of the exterior angle of a 11-sided polygon = 360⁰/11 = 32 72/99⁰ = 32 8/11⁰
Providing that it is a regular 38 sided polygon then each interior angle will measure: 170o31'34.74''
Providing that it is a regular 12 sided polygon then each exterior angle measures 30 degrees
the center angle of any polygon is 360 degrees
This figure is a regular 12-sided polygon. Find m<4
51º per interior angle
56
120
75