1) 90°
Reason: the angle at the circumference in a semicircle is a right angle
2) 65°
3) Yes
Reason: the angle at the circumference in a semicircle is a right angle
2) 65°
3) Yes
Working
Questions
You may use a calculator for the following questions. All of the diagram in the questions are not drawn to scale.
1) What is the size of angle A? Give a reason for your answer.
You may use a calculator for the following questions. All of the diagram in the questions are not drawn to scale.
1) What is the size of angle A? Give a reason for your answer.
2) What is the size of angle B?
3) Is the side AB a diameter?