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Vocab!
Algebra???
Angles in a Circle
Tangent Lines
Arc Length
100

Any segment connecting a point on a circle to its center.

What is a "radius"

100

This is often known as PEMDAS or GEMS.

What is "order of operations"

100

This type of angle has its vertex on the circle.

What is "inscribed angle"

100
When a radius and a tangent line meet, they form what kind of angle
What is Right Angle (90 degrees)
100

This is the formula for Arc Length.

What is "Length = (measure/360)*circumference"

200

The distance around a circle.

What is "circumference"

200

If a function has a consistent rate of change and looks like a line when graphed, it is this kind of function.

What is "linear function"

200

If a central angle measures 50 degrees, this is the measure of its intercepted arc.

What is "50 degrees"

200

When two tangent segments touch a circle and meet at an external point, are these tangent segments...

A) congruent

B) Complementary 

C) Supplementary 

D) add to get 180 degrees

What is A) the tangent lines will be equal to each other.

200

If circle has a circumference of 20𝝅 inches, its semicircle will have this arc length.

What is "10𝝅 inches"

300

A segment that goes from one side of the circle to the other side of the circle through the center.

What is a "diameter"

300

This is the rate of change of a linear function, often found by calculating change in y divided by change in x?

What is "slope"

300

If an inscribed angle measures 58 degrees, this is the measure of its intercepted arc.

What is "116 degrees"

300
What can we use to prove that a line is indeed tangent to the circle?
What is the Pythagorean Theorem
300

If a circle has radius of 4 feet, an arc with a measure of 90 degrees has this arc length.

What is "2𝝅 feet"

400

The arc that subtends the diameter of a circle.

What is a "semicircle"

400

If a function has an x2 term, it may be this kind of function.

What is "quadratic function"

400

If the angle made by two tangent lines is 53 degrees, this is the measure of the their intercepted arc.

What is "127 degrees"

400
If a triangle has side lengths 4 and 9, and a hypotenuse of 12, will this triangle have a tangent line to the circle?
What is No
400
If an arc has an arc measuring 30 degrees and a radius of 4cm, what the Arc Length? round to the nearest tenth
What is 2.1 cm
500

Region of a circle bounded by two radii and an arc.

What is a "sector"

500

For the following system of equations, what values of (x,y) make them both true? (Solve the system of equations!)

y=2x-4

y=6x+8

What is "(-3,-10)"

500

If an inscribed angle has a measure of 2x+4 and a central angle that has the same intercepted arc has measure 8x-20, this is the measure of the intercepted arc.

What is "36 degrees"

500

Two tangent segments touch a circle and meet at an external point P. One measures 30 cm while the other is 3x-15. What is the value of X?

What is X=15 cm

500
An arc measures 140 degrees and has a radius of 5 feet. What is the Arc Length? round to the nearest tenth
What is 12.2 feet