Concave pentagon.
A concave pentagon.
210 degrees.
Suppose the angle is x degrees. Then its supplement is 180 - x and complement is 90 - x So 180 - x + 90 - x = 210 ie 270 - 2x = 210 so 2x = 60 or x = 30
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150
505 What? (505)
A concave pentagon.
An irregular pentagon
An angle that measures 210 degrees is a reflex angle.
210° is a reflex angle. A reflex angle is between 180° and 360°.
210 degrees.
210/3=70
Suppose the angle is x degrees. Then its supplement is 180 - x and complement is 90 - x So 180 - x + 90 - x = 210 ie 270 - 2x = 210 so 2x = 60 or x = 30
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150
There are: 210/30 = 7
An angle that is 210 degrees would be considered a "Reflex" angle. This is because its measurements exceed 180 degrees. Anything above 90 degrees is "obtuse". Once you hit 180 it becomes a "straight" line and anything above that is a "reflex".
505 What? (505)
210 degrees