Geometry Chapter 10: Circles

A line that intersects a circle in exactly 2 points

• chord

• tangent

• secant

• radius

Coplanar circles that have the same center but different radii

• similar circles

• tangent circels

• coplanar circles

• concentric circles

If there is an intersection outside the circle, then the angle formed is 1/2 of the difference of the intercepted arcs

• True

• False

Tangent and secant are drawn to a circle:

• tangent2=externalx whole

• part x part=part x part

• external x whole=external x whole

The inscribed angle equals 1/2 of the intercepted arc

• true

• false

An inscribed quadrilateral's opposite angles are NOT supplementary

• True

• False

(x-h)2+(y-k)2=r2 Equation of a circle

• True

• False

A tangent line must be perpendicular to a radius

• True

• False

A line that intersects a circle in exactly 1 point

• chord

• tangent

• secant

• diameter

Tangent segments from a common external point are NOT congruent

• True

• False