Properties of a Circle

AD is a diameter of the circle ABCDE. AB and ED are parallel lines. What are the values of w, x, y and z?

• w=30, x=22, y=30, z=52

• w=30, x=30, y=22, z=52

• w=52, x=22, y=30, z=30

• w=22, x=30, y=22, z=52

Find the value of x

• 67

• 80

• 33

• 213

Find ∠DAR.

• 34⁰

• 17⁰

• 68⁰

• 136⁰

Find the measure of angle V

• 85

• 80

• 87

• 117

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

• 88

• 75

• 92

• 102

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

• 72

• 144

• 36

• 90

A,B, C, and D lie on a circle, centre O.

SCT is a tangent and is parallel to OB.

What are the values of x, y, z and the reflex angle AOC.

• x=40, y=20, z=120, reflex angle AOC=130

• x=40, y=25, z=115, reflex angle AOC=230

• x=40, y=25, z=115, reflex angle AOC=130

• x=40, y=25, z=130, reflex angle AOC=230

A diameter is also a chord. 

• True

• False 

• in the interior of the circle

• on the circle

• in the exterior of the circle

• cannot say

Name the pictured part of the circle.