.Q18. Case study 2 In the diagram, a crane ABCD carries a load E. LABC = 60o
, LACB = 90o
, LACD= 45o
LCAD= 90o
, BC= 9 m and DE = 5 m. [ Use √3=1.7and √ = 2.4]
Answer the following questions:
(i) Length of the side AC be :
(a) 13.3 m
(b) 14.3 m
(c) 15.3 m
(d) None of the above
(ii) Length of the side DC be:
(a) 21.6 m
(b) 17.34 m
(c) 23.45m
(d) None of the above
(iii) cosec L BAC is equal to
(a) ½
(b) 2
(c) 0
(d) None of the above
(iv) sec L ADC is equal to
(a) √3/2
(b) 1/2
(c) √2
(d) 2
, LACB = 90o
, LACD= 45o
LCAD= 90o
, BC= 9 m and DE = 5 m. [ Use √3=1.7and √ = 2.4]
Answer the following questions:
(i) Length of the side AC be :
(a) 13.3 m
(b) 14.3 m
(c) 15.3 m
(d) None of the above
(ii) Length of the side DC be:
(a) 21.6 m
(b) 17.34 m
(c) 23.45m
(d) None of the above
(iii) cosec L BAC is equal to
(a) ½
(b) 2
(c) 0
(d) None of the above
(iv) sec L ADC is equal to
(a) √3/2
(b) 1/2
(c) √2
(d) 2
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