Circle Theorem Circumscribed Circle

The cente of the circumscribed circle in any triangle is the intersection of the

• median lines

• heights

• angle bisectors

• perpendicular side bisectors

The opposite angles of an inscribed quadrilateral ....

• add up to be 180^O

• are the same

• are always acute

• equal

The radius of a circle is 4 cm. How much is half of the perimeter of the circle?

• 11,5 cm

• 25,13 cm

• 9,46 cm

• 12,57 cm

A ____ is a line segment from the center of a circle to a point on the circle.

• radius

• diameter

• chord

A ____ is a segment whose endpoints are points on a circle.

• chord

• radius

• tangent

What two parts of the circle are identified? Select all that apply.

• chord

• secant

• tangent

Point D is called the ____.

• center of the circle

• point of tangency

• inscribed point

Which of the following arcs is a major arc?

• arc ZUK

• arc RMK

• arc RMU

A(n) ____ is an angle whose vertex is on a circle and whose sides contain chords of the circle.

• inscribed angle

• central angle

• circumscribed angle

A ___ to a circle is a line that intersects a circle in exactly one point.

• secant

• tangent

• diameter