The figure below shows a frustrum ABCDEFGH of a right pyramid where AB=40cm, BC=30cm, FG=20cm, GH=15cm and AF=BG=CH=DE=25cm.

      

The figure below shows a frustrum ABCDEFGH of a right pyramid where AB=40cm, BC=30cm, FG=20cm, GH=15cm and AF=BG=CH=DE=25cm.
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Find the vertical height of the frustrum.
a) Find the angle between line BE and the base ABCD
b) Find the angle between the plane BCHG and the base ABCD.
c) Find the angle between the plane ADEF and the plane AGHD

  

Answers


sharon
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sharon kalunda answered the question on May 7, 2019 at 11:11


Next: In the figure below AOC is a diameter, ADG and BCFG are straight lines, angle ACB=420, angle CAE=740 and angle DEC=360
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