Angles in Reference to Circle

Angles in Circles Part 2

Opposite Angles Cyclic Quadrilateral add up to 180^o

To find the missing angle, subtract from 180^o

Multiple Choice

What is the value of the missing angle?

• 141

• 39

• 180

• 360

Multiple Choice

What is the value of angle BCD?

• 180

• 100

• 80

• 360

Multiple Choice

Find the value of angle ABC

• 130

• 50

• 180

• 360

Exterior angle of a cyclic quad is equal to the interior opposite angle

Multiple Choice

What is the size of angle a?

• 83

• 97

• 180

• 360

Multiple Choice

What is the size of angle a?

• 360

• 180

• 110

• 70

Tangent is perpendicular to radius

Perpendicular means they touch at 90^o

Multiple Choice

What is the value of angle ABC?

• 90

• 180

• 45

• 60

Open Ended

Write down the reason why angle ABC is 90^o

Open Ended

What is the size of angle ABC? Give a reason for your answer

Open Ended

What is the size of angle ACB? Give a reason for your answer

Two tangents from a point are equal

Open Ended

What is the value of angle a? Give a reason for your answer.

Open Ended

What is the value of angle b? Give a reason for your answer.

Open Ended

Find the value of angle a. Give the reason for your answer.

Open Ended

Find the value of angle b. Give the reason for your answer.

Open Ended

Find the value of angle c. Give the reason for your answer.

Open Ended

Find the value of angle d. Give the reason for your answer.

Open Ended

Find the value of angle e. Give the reason for your answer.