GEO Unit 4 Review - Circles

The degree measure of an arc is equal to a third of the measure of it's inscribed angle.

• True
• False  (is equal to half the measure...)
• False (...of it's central angle.)
• False   ( .... is equal to double the measure ...)

The diameter of a circle divided by the circumference of the circle is equal to π

• True
• False  (The circumference of a circle divided by the diameter....)
• False  (The radius of a circle ....)
• False  (The central angle of a circle.....)

A chord is a segment connecting the center of the circle to any point on the circle.

• True
• False (A secant is a segment....)
• False  (A radius is a segment ....)
• False  (A tangent is a segment ...)

Two Circles are congruent if they have the same radius

• True
• Fals  (...if they have the same chord)
• False (... if they have the same secant)
• False (.... if they have the same central angle.)

Two chords in the same circle are different distances from the center of the circle.

• True
• False (...are equidistant from the center of the circle.)

If a circle has circumference of 36π the the arc measure with measure 60° has length 

• 6π
• 10π
• 60π
• 12π

__________ segments to a circle from a point outside the circle are congruent.

• Tangent
• Secant
• Chord
• Diameters

Any ___________ in a semi-circle is a right angle.

• inscribed angle
• central angle
• arc degree
• radius

The length of an arc equals the degree measure of the arc divided by 360, times the __________

• radius
• circumference
• diameter
• area

A tangent to a circle is _________ to the radius drawn to the point of tangency.

• perpendicular
• parallel
• connected 
• congruent