If the radius of a circle is 9 cm, what is the diameter?
18 cm
What do you call a line segment that connects the center of a circle to a point on the circle?
radius
Which points would create a chord, and which points would create a Secant?
PQ = Secant
AB = Chord
A central angle measures 95°. What is the measure of the intercepted arc?
95°
Write the formula for the area of a circle.
A= pi* r2
What is m∠B?
m∠B = 60°
Find the circumference of a circle with diameter 14 in (exact form).
14pi* in
Name the angle formed by two radii with its vertex at the center.
central angle
If m∠D = 47°, then what is m∠A and m∠B?
∠A = 90° and ∠B = 43°
A circle has area 49pi*. What is the radius?
7
What is the measure of a full circle in degrees?
360 degrees

Quadrilateral ABCD is inscribed in circle E.
Find m∠B and m∠C, if m∠A = 30° and m∠D = 60°
m∠C = 150° and m∠B = 120°
The circumference of a circle is 31.4ft. Find the radius.
5 ft
True or False: A diameter is also a chord.
true
Find Arc GE
ARC GE = 160°