Practice with Lines and Angles

Complete these exercises and check your answers.

Answers

1. \angle C B D or \angle D B C

3. \angle A E D or \angle D E A

5. \angle A B C or \angle C B A


1. \text { (a) } 53^{\circ}  \qquad \text { (b) } 45^{\circ} \qquad \text { (c) } 37^{\circ}  \qquad \text { (d) } 30^{\circ} 

7. \text { (a) } 150^{\circ}  \qquad \text { (b) } 143^{\circ} \qquad \text { (c) } 90^{\circ}  \qquad \text { (d) } 60^{\circ}