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

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

Calculate the size of
(a) CBD (b) ABD

Answers

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

DCB = 180^o - 82^o = 98^o

CBD = 180^o - (98 + 45)^o

= 180^o - 143^o = 37^o

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

= 180^o - 113^o = 67^o

= 180^o - 149^o = 31^o

johnmulu answered the question on June 9, 2017 at 11:42

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