Circles Theorems Test

Identify which circle theorems you could use to solve each question

• Angle between tangent and radius is 90°

• Angle is in semicircle is 90°

• Opposite angles of cyclic quadrilateral add to 180°

• Angle is same segment are equal

• Two angles in isoceles triangle the same

Find the shaded angle

• 74

• 148

• 32

Label the YELLOW arrow

Label the RED arrow

What is the value of x and y?

• x=75°; y=93°

• x=65°;y=104°

• x=75°; y=94°

• x=65°; y=93

What is the size of angle x?

• 19^o

• 76^o

• 39^o

• 38^o

What is the measure of angle c and d?

• c = 21, d = 50

• c = 63, d = 78

• c = 78, d = 63

• c = 10, d = 50

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

• 90

• 43

• 47

• 53

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

• 90

• 45

• 50

• 100

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

• 50

• 100

• 80

• 90