CK-12 Geometry - Second Edition

http://www.ck12.org Chapter 6. Polygons and Quadrilaterals

8 x= 168 ◦

x= 21 ◦

a.w= 108 ◦,x= 49 ◦,y= 131 ◦,z= 121 ◦

b. 360◦

c. 59◦+ 72 ◦

d. interior angles, exterior angles