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Unformatted text preview: of the rod slide? (You may refer to P.124 Q.21 in the textbook.) 3. In the figure, AB // DC and AD ⊥ DC . Find (a) the length of AD ; (b) the area of the trapezium ABCD . 4. Refer to the figure, AB = 21 cm, AC = 20 cm, ∠ CAB = 90 ° . Given that AD ⊥ BC , find the length of AD . A B C D...
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- Winter '11
- Orders of magnitude, 2.5 m, 8 m, Initialisms, rod slides downwards