Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH.

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Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the line of intersection?

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the line of intersection? HE

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH H E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the plane ABHE? H E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the plane ABHE? Rectangle H B A E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the plane CDEH? H B A E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH What’s the plane CDEH? Rectangle H B C A D E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH Find a line perpendicular to the line of intersection HE. H B C A D E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH Find a line perpendicular to the line of intersection. H B C A D E

Exercise 4.4 Q.4 (a) Angle between ABHE and CDEH ∠BHC or ∠AED H B C A D E

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