Exercise 6A Q.12 Angle between BDG and ABCD

Exercise 6A Q.12 Angle between BDG and ABCD What’s the line of intersection?

Exercise 6A Q.12 Angle between BDG and ABCD What’s the line of intersection? BD

Exercise 6A Q.12 Angle between BDG and ABCD What’s the line of intersection? BD

Exercise 6A Q.12 Angle between BDG and ABCD What’s the line of intersection? BD D B

Exercise 6A Q.12 Angle between BDG and ABCD What’s the line of intersection? BD D B

Exercise 6A Q.12 Angle between BDG and ABCD What’s the plane BDG? D B

Exercise 6A Q.12 Angle between BDG and ABCD What’s the plane BDG? Isosceles Triangle D G B

Exercise 6A Q.12 Angle between BDG and ABCD What’s the plane CDB? D G B

Exercise 6A Q.12 Angle between BDG and ABCD What’s the plane CDB? Isosceles Triangle D G C B

Exercise 6A Q.12 Angle between BDG and ABCD Find a line perpendicular to the line of intersection BD. D G C B

Exercise 6A Q.12 Angle between BDG and ABCD Find a line perpendicular to the line of intersection BD. D X G C B

Exercise 6A Q.12 Angle between BDG and ABCD ∠GXC D X G C B X