Circle Theorems Lesson

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

• congruent
• perpendicular
• complimentary
• supplementary

Two tangents of a circle that meet outside of the circle at one point are _________.

• congruent
• perpendicular
• the same

Tags

CCSS.HSG.C.A.2

A segment whose endpoints lie on a circle is a _______.

• tangent
• chord
• diameter
• secant

Tags

CCSS.HSG.C.A.2

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

• tangent
• secant
• chord
• radius

In a circle, the perpendicular bisector of a chord:

• is tangent to the circle
• is the diameter
• is a right triangle
• eats frosted flakes for dinner

Tags

CCSS.HSG.CO.B.7

In a circle (or congruent circles), chords that are the same distance from the center:

• are similar
• have the same name
• are congruent to each other
• are walking dead

Tags

CCSS.HSG.C.A.2

The distance around a circle is the

• Diameter
• Radius
• Circumference
• Area

If the diameter of a circle is 10 cm, the radius is 5 cm.

• TRUE
• FALSE

Tags

CCSS.7.G.B.4

Which circle theorem rule is used to find angle x?

• The angle at the circumference in a semicircle is 90°
• Inscribed angles that intersect the same arc are congruent.
• A tangent meets a radius at 90°
  
• The central angle is twice the inscribed angle of the same arc.

Tags

CCSS.HSG.C.A.2

What is the size of angle x?

• 19^o
• 76^o
• 39^o
• 38^o

Tags

CCSS.HSG.C.A.2