In the figure below, ABCD is a cyclic quadrilateral and BD is diagonal. EADF is straight line, CDF = 68o, BDC = 45o and BAE = 98o

      

In the figure below, ABCD is a cyclic quadrilateral and BD is diagonal. EADF is straight line, CDF = 68o, BDC = 45o and BAE = 98o
mathematics69201712237.jpg
Calculate the size of
(a) CBD (b) ABD

  

Answers


John
(a) DAB = 180o - 98o = 82o

DCB = 180o - 82o = 98o

CBD = 180o - (98 + 45)o

= 180o - 143o = 37o

(b) ADB = 180o - (68 + 45)o

= 180o - 113o = 67o

= 180o - 149o = 31o
johnmulu answered the question on June 9, 2017 at 11:42


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