ª MATHSprint, 2013Free worksheet created by MATHSprint. Circle Theorems:1

Circle Theorems.mathsprint.co.uk .www

1: 12

If —CAD = 67°, find —CBD.

A

B

C

D

a) If —AOB = 112°, find —ACB.

O

A

B

C

b)

If —ACB = 21°, find —CAB.

O

A

BC

c) If —ABO = 71.5°, find —AOB.

O

A

B

d)

If —ABO = 35.5°, find —AOB.

O

A

B

e) If —ACB = 44°, find —ADB.

A

B

C

D

f)

ª MATHSprint, 2013Free worksheet created by MATHSprint. Circle Theorems:1

2: 12

If —ADC = 69°, find —ABC.

A

BC

D

a) Find —OAB.

O

A

B

C

b)

If —BAD = 29°, find —ACB.

AB

C

D

E

c) If —ABC = 113°, find —ADC.

AB

CD

d)

Find —OAC.

O A

B

C

e) If —CAE = 27°, find —ABC.

A

B

C

D

E

f)

ª MATHSprint, 2013Free worksheet created by MATHSprint. Circle Theorems:1

Answers: Circle Theorems.mathsprint.co.uk .www

1: 12 67°a) 56°b) 69°c) 37°d) 109°e) 44°f)

2: 12 111°a) 90°b) 29°c) 67°d) 90°e) 27°f)