Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the line of intersection?

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the line of intersection? EF

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH F E

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the plane CDEF? F E

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the plane CDEF? Rectangle C F D E

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the plane EFGH? C F D E

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH What’s the plane EFGH? Rectangle C F G D E H

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH Find a line perpendicular to the line of intersection FE. C F G D E H

Exercise 4.4 Q.6 (a) Angle between CDEF and EFGH ∠CFG or ∠DEH C F G D E H