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Example The cuboid below has length AB = 4cm, DE = 6cm and AF = 12cm. Work out the lengths of the diagonals ( i ) AE (ii) BH (iii) EH . Right-Angled Trigonometry. D. C. Involving 3D. G. H. E. B. F. A. E. A. D. H. B. C. Example
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Example The cuboid below has length AB = 4cm, DE = 6cm and AF = 12cm. Work out the lengths of the diagonals (i) AE (ii) BH (iii) EH Right-Angled Trigonometry D C Involving 3D G H E B F A
E A D H B C Example The figure is a pyramid on a square base ABCD. The edges of the base are 30cm long and the height, EH, of the pyramid is 42cm. Find a) the length of AC b) the angle EAH
E F D A B C Example ABCDEF is a prism with a triangular cross-section. , BC = 8m, AB = 6m and CD = 20m. Find (i) AC (ii) BD (iii) the total surface area of the prism.