Lines and Circles

Which line segment represents the diameter of the circle?

• PQ

• AO

• AB

• OC

Radius of a circle is 

• a line segment

• a ray

• a point on the circle

• a triangle

Radius of a circle is

• twice the length of its diameter.

• three times the length of its diameter.

• half the length of its diameter.

• one third the length of its diameter.

Bisecting a line means

• doubling it.

• cutting it into three pieces.

• cutting it in half.

• copying it.

Which line segment represents the radius of the circle? 

• WM

• MZ

• XM

• All of the above

When you bisect a line, you divide it into 

• two equal sides.

• three equal sides.

• four equal sides.

• five equal sides.

A line segment that passes through the center of a circle, connecting two points on a circle is called ________________.

• diameter

• radius

• circumference

• area

What is the value of x?

• 22

• 25

• 15

• 20

Is line AB tangent to the circle?

• YES

• NO
  NO

• Can't Tell
  Can't Tell

In the diagram, a tangent and a line drawn to the point of tangency form a right triangle. Solve for "?" (the length of the hypotenuse)

• 15

• 6

• -24

• 14