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The figure below is a right pyramid VEFGHI with a square base of 8cm and a slant edge of 20cm Points A B C and D lie on the
slant edges or the pyramid such that VA = VB = VC = VD = I0 cm and plane ABCD is parallel to the base EFGH.
(a) Find the lenght of AB.
(b) Calculate to 2 decimal places
(i) The lengh of AC
(ii) The perpendicular height of the pyramid VABCD
(c) The pyramid VABCD was cut off.Find the volume of the frustrum ABCDEFGH correct to 2 decimal places