Periodic Assessment 1b

1. 	Determine the measure of the central angle for a regular polygon with: 

a.	5 sides 		b.	9 sides 		c.	k sides 

2. 	Find the number of sides in a regular polygon whose central angles measure: 

a.	40° 			b. 	24° 			c.	m° 0 where m < 360 

3.	Identify each set of angle measures below as supplementary, complementary, or neither.  Justify your answers. 

a.	32°, 58° 		b. 	31°, 23°, 35° 	c.	65°, 115° 

4. 	Determine the supplement and complement of each angle: 

					Complement			Supplement

	a.	67°			__________			__________

b. 	112° 			__________			__________

c.	v° where v < 90 	__________			__________

5. 	The sum of the measures of the interior angles of a triangle is 180°. Is it possible to have a pair of supplementary angles in one triangle? Explain your answer.