Review Length of Arc, Tangents, Circles, Segments

Find EF

• 1

• 4.2

• 5

• 6

Given a square inscribed in a circle. If the circumference of the circle is 16π, find the perimeter of the square.

• 32

• 64

Segments AB and AC are tangent to circle O. If AB=6\sqrt{3} and m\angle A=60\degree, find the length of arc BC.

Is line AB tangent to the circle?

• YES

• NO
  NO

• Can't Tell
  Can't Tell

A line in the same plane as a circle that intersects the circle at exactly one point is a ____________.

• tangent

• secant

• chord

• radius

A tangent is a line that touches a circle at just one point and forms a right angle with the circle's radius.

• True

• False

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

What can you conclude from the picture?

• m is parallel to circle C

• m is skew to circle C

• m bisects circle C

• m is tangent to circle C

Is line AB tangent to the circle?

• YES

• NO
  NO

• Not Enough Info

What is the arc length of arc XY?

• 5.5π

• 4π

• 8π

• 2π