Vocabulary
Circumference and Area
Tangent Segments
Arcs and Inscribed Angled
The equation of a circle
How well do you know Ms. Woodruff?
100
The set of all points that are the same distance from a center point.
What is a circle?
100
A circle has a diameter of 12.5 inches. What is the circumference? Leave in pi form.
What is
12.5pi
100
Is line segment AB tangent to circle C?
What is no?
9^2+15^2=18^2
306=324
100
Solve for the measure of arc QT.
What is 100 degrees?
100
What is the general equation of a circle?
What is
(x-h)^2+(y-k)^2=r^2
100
This is Ms. Woodruff's go-to drink in the morning.
What is zero-sugar monster?
200
The distance from the center of the circle of the circle itself.
What is the radius?
200
A circle has a radius of 12.5 inches. What is the length of an arc defined by an 72º central angle?
Leave your answer in terms of pi.
What is
5pi
200
AB and AD are Tangent to circle C. Solve for x.
What is 9.
200
Solve for the measure of angle RTS.
What is 24 degrees?
200
Write the equation of a circle with center (4,5) and radius 6.
What is
(x-4)^2+(y-5)^2=6^2
200
Which one of these is not true?
a) Ms. Woodruff has dropped out of college
b) Ms. Woodruff does not watch anime
c) Ms. Woodruff graduated from Stony Brook University
d) Ms. Woodruff changed her name when she got married
What is d? Ms. Woodruff is still Woodruff!
300
A line that intersects a circle and always forms a 90º angle with the radius.
What is the tangent line?
300
A circle has a diameter of 100 miles. What is the area of the circle? Leave in pi form.
What is
2500pi
300
How would you set up the equation to verify that AB is tangent to circle C?
What is
40^2+48^2=60^2
300
Solve for the measure of arc GF.
What is
GF=130
300
Write the equation of a circle with the center (4,-5) and radius 3.78.
What is
(x-4)^2+(y+5)^2=3.78^2
300
Ms. Woodruff said she collects this item on the first day of school.
What are squashed pennies?
400
This is how the measure of an arc is defined.
What is "by its central angle" / "measured in degrees"?
400
A circle has a radius of 16. Find the area of the sector defined by a 90º central angle. Leave in terms of pi.
What is
64 pi
400
AB and AD are tangent to circle C. Solve for x.
What is 3?
400
Solve for the measure of Z.
What is 100 degrees?
400
The center of a circle is (-1,3) and a point on the circle is (-5,6). Find the radius of the circle.
What is
r=5
400
The name of Ms. Woodruff's husband.
Who is Chris?
500
An inscribed angle ACB in a circle measures 90º.
Segment AB is defined as a...What is diameter?
500
A circle has a circumference of
6pi
What is the area? Leave in pi form.
What is
9 pi
500
AB is tangent to circle C. Solve for the value of r. Round to two decimal places.
What is 10?
500
Solve for the value of x.
What is
x=10
500
The end points of the diameter of a circle are (0,-1) and (-5,-6). Find the center of the circle.
What is
(-2.5,-3.5)
500
The score Ms. Woodruff got on the Geometry Regents in high school.
What is 85?