Cyclic Quadrilaterals and Angle Measures

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

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

• d = 70, e = 180, f = 110

• d = 110, e = 110, f = 70

• d = 70, e = 110, f = 70

• d = 110, e = 70, f = 110

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

• m=120, n=40

• m=40, n=120

• m=140, n=120

• m=280, n=240

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

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

• p=68, q=44

• p = 136, q=65

• p=44, q=68

• p=88, q=136

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