In Fig. 10.38, `angle ABC = 69^@`, `angle ACB = 31^@`, find `angle BDC`.

In Fig. 7.49, angle B

In Fig 10.33, ABCD is a cyclic quadrilateral in which AC and BD are its diagonals. If angle DBC = 55^@ and angle BAC = 45^@ , find angle BCD .

In Fig. 6.41, if AB || DE, angle BAC = 35^@ and angle CDE = 53^@ , find angle DCE .

Find angle x in Fig.

In Fig. 6.40, angle X = 62^@, angle XYZ = 54^@ . If YO and ZO are the bisectors of angle XYZ and angle XZY respectively of triangle XYZ , find angle OZY and angle YOZ .

In Fig. 6.32, if AB || CD, angle APQ = 50^@ and angle PRD = 127^@ , find x and y.

In Fig. 6.42, if lines PQ and RS intersect at point T, such that angle PRT = 40^@, angle RPT = 95^@ and angle TSQ = 75^@ , find angle SQT .

In Fig. 6.24, if PQ || RS, angle MXQ = 135^@ and angle MYR = 40^@ , find angle XMY .

In Fig. 6.30, if AB || CD, EF bot CD and angle GED = 126^@ , find angle AGE, angle GEF and angle FGE .

In Fig. 6.37, if QT bot PR , angle TQR = 40^@ and angle SPR = 30^@ , find x and y.