Cyclic Quadrilaterals

Find the sizes of the lettered angles in each of these circles

• a = 50, b = 95

• a = 85, b = 130

• a = 95, b = 50

• a = 130, b = 85

Find the sizes of the lettered angles in each of these circles

• c = 92, x = 90

• c = 180, x = 77

• c = 88, x = 88

• c = 88, x = 92

Find the sizes of the lettered angles in each of these circles

• g = 105, h = 99

• g = 81, h = 105

• g = 99, h = 105

• g = 105, h = 81

Find the sizes of the lettered angles in each of these circles

• j=91, k=89, l=89

• j=90, k=91, l=91

• j=89, k=89, l=91

• j=91, k=89, l=91

• j=90, k=90, l=90

Find the sizes of the lettered angles in each of these circles

• x=40, y=34

• x=34, y=50

• x=34, y=40

• x=80, y=68

Find the values of x and y in each of these circles where O is the centre.

• x=26, y=128

• x=128, y=26

• x=64, y=26

• x=128, y=114

Find the values of x and y in each of these circles where O is the centre.

• x=54, y=30

• x=48, y=30

• x=48, y=78

• x=78, y=48

Find the values of x and y in each of these circles where O is the centre.

• x = 85

• x = 35

• x = 65

• x = 55

Find the values of x and y in each of these circles where O is the centre.

• x = 50°​

  y = 45°

• x = 45°​

  y = 48°

• x = 48°​

  y = 40°

• x = 48°​

  y = 45°

Find the angles of x and y in each of these circles where O is the centre

• x = 50°​

  y = 62°

• x = 80°​

  y = 100°

• x = 100°​

  y = 80°

• x = 70°​

  y = 20°