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Trigonometry
Question

\(\mathrm{ABCD}\) is a quadrilateral.\(\mathrm{AB...

 

\(\mathrm{ABCD}\) is a quadrilateral.\(\mathrm{AB}=7\mathrm{cm}\)\(\mathrm{BC}=5\mathrm{cm}\)\(\mathrm{BC}=11\mathrm{cm}\)\(\mathrm{AD}=10\mathrm{cm}\), angle \(\mathrm{BAD}=130^{\circ}\). Work out the size of angle \(\mathrm{BCD}\).

Answer

\(147.7^{\circ}\)

Solution
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