Junior Cycle Circle Theorems

Junior Cycle Circle Theorems

Angle <DEF is 65^o

Multiple Choice

Find the value of the angle marked x....

• 50

• 100

• 80

• 90

Multiple Choice

Find the value of the angle marked x....

• 125

• 70

• 110

• 55

Multiple Choice

Find the value of the angle marked x....

• 32

• 64

• 16

• 58

Fill in the Blanks

All the angles in this circle are equal as they are standing on the same arc.

Multiple Choice

Find the value of the angle marked x....

• 56

• 90

• 34

• 44

Multiple Choice

Find the value of the angle marked x....

• 88

• 44

• 92

• 46

Multiple Choice

What are the sizes of a and b?

• a = 57, b = 114

• a = 57, b = 57

• a = 114, b = 57

• a = 57, b = 28.5

Multiple Choice

Find the value of the angle marked x....

• 78

• 88

• 102

• 92

Multiple Choice

Find the value of the angle marked x....

• 88

• 75

• 92

• 102

Multiple Choice

what are the values of c and d?

• c = 218, d = 71

• d = 109, c = 71

• c = 142, d = 218

• c = 142, d = 109

Fill in the Blanks

Multiple Choice

Find the value of the angle marked x....

• 102

• 51

• 129

• 78

The angle opposite the diameter in a semicircle is always 90^o

Fill in the Blanks

Multiple Choice

Find the value of the angle marked x....

• 90

• 43

• 47

• 53

Fill in the Blanks