U
ABCDEFGH is a cuboid.
AP
В
14 cm
a Calculate the length of diagonals
i FH
ii BH iii FC iv CE.
b Find the angle between the diagonal DF and the plane EFGH.
c Find the angle between the diagonal GA and the plane ABCD.
d Find the angle between the diagonal CE and the plane AEHD.
G
9 cm
E
12
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