12. In a quadrilateral ABCD, AB = 3.2 cm, BC =
5.1 cm, the diagonal BD = 7.5 cm and CÊD =
34.4°. The area of AABD is 11.62 cm² and
AỂD is obtuse. Calculate
(a) the area of ABCD;
(b) the size of the obtuse ZABD.
please someone solve (b) part
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Can you please give me some time.. i will complete and post
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look at the working and answers matched
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