Measurements
in Circles
in Circles
Equation
of a Circle
of a Circle
Angles
in Circles
in Circles
The 1 and Only
Unit Circle
Unit Circle
Positive &
Negative Angles
Negative Angles
100
The red shaded portion of the circle is called a ____________.
sector
100
Write the equation of a unit circle.
x^2+y^2=1
100
DOUBLE POINTS!!
The ∠TLS is a __________________ angle and ∠TDS is an _______________ angle
central, inscribed
100
A unit circle has a radius of _______ and is centered at the ______________.
one, origin
100
Negative Angles are measured in a _________________ direction.
clockwise
200
Find the length of the chord.
sqrt90=3sqrt10
200
Write the equation of this circle.
(x-3)^2+(y-2)^2=16
200
If ∠ADC measures 23°, what does ∠ABC measure?
46^o
200
DOUBLE POINTS!!
The ordered pairs listed on the unit circle represent ________________. (Be specific...)
The length of the legs of a right triangle with a radius of 1.
200
A ________________ angle is a positive angle formed between the terminal side of an angle and the x-axis.
reference
300
Find the exact arc length of minor arc PQ.
9pi
300
Write the equation of this circle.
(x+2)^2+(y+3)^2=26
300
100^o
300
Evaluate
cos(150^o)=
-sqrt3/2
300
DOUBLE POINTS!!
List one positive and one negative coterminal angle for
120^o
Infinite possible answers.
ie: 840^o, 480^o, -240^o,-600^o,-960^o....
400
DOUBLE POINTS!!
SAT Problem: Find the shaded area.
18sqrt3-2piapprox24.9
400
Write the equation of this circle.
(x-6)^2+(y+7)^2=45
400
What is the measure of ∠A?
50^o
400
Evaluate
tan(510^o)=
-sqrt3/3
400
Find the reference angle for
-210^o
30^o
500
The heaviest internal organ in the human body.
liver
500
In what year did the first iPhone come out?
2007
500
What country has the most active volcanos?
Indonesia
500
This blood type is known as the "universal donor" because it can be given to anyone in emergencies.
O- (O negative)
500
What's the name of that thing that hangs down in the back of your throat?
uvula