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6. In figure 4, DB is perpendicular to the line ABC, AE=25cm, BC=15 cm, angle EAB=30, and angle BCD=45. Calculate the length of DE.
6. In figure 4, DB is perpendicular to the line ABC, AE=25cm, BC=15 cm, angle EAB=30, and angle BCD=45. Calculate the length of DE.
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Cambridge IGCSE And O Level Additional Mathematics
Authors: Val Hanrahan, Jeanette Powell
1st Edition
1510421645, 978-1510421646
