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Vocabulary
Angles and Arcs
Sector Area
Arc Length
Random Math
100
The set of all points on the inside of a circle.
What is the interior of a circle.


100
A central angle in a circle is 80 degrees, what is degree measure of the arc?
What is 80 degrees.
100
The radius is 5 cm, and the arc measure is 120 degrees, the sector area is ________. (Round to the nearest tenth)

What is 26.2 cm2

100

The radius is 16 ft, and the arc measure is 45 degrees, the arc length is ________. (Round to the nearest tenth)

What is 12.6 ft.
100
The polygon with 12 equal sides.
What is Dodecagon.
200
Two circles are _______ if and only if they have the same radii.
What is congruent.
200
The central angle of a circle is 190 degrees so the corresponding arc is a _________ arc.
What is major.
200

The radius is 6 m, and the arc measure is 90 degrees, the sector area is ________. (Round to the nearest tenth)

What is 28.3 m2

200

The radius is 9 m, and the arc measure is 120 degrees, the arc length is ________. (Round to the nearest tenth)

What is 18.9 m.
200
The angle measuring less than 90 degrees.
What is an acute angle.
300
A line in the same plane as a circle that intersects it at exactly one point.
What is a tangent.
300
The major is arc is 210 degrees, the minor arc to go with this major arc is _______.
What is 150 degrees.
300

The radius is 8 in, and the arc measure is 135 degrees, the sector area is ________. (Round to the nearest tenth)

What is 75.4 in2

300

The radius is 5 mm, and the arc measure is 50 degrees, the arc length is ________. (Round to the nearest tenth)

What is 4.4 mm.
300
The formula used to find the length of a line segment in the coordinate plane (x-y plane).
What is the distance formula.
400
The longest chord in a circle.
What is the diameter.
400
A pie chart has a section that takes up 33%, the corresponding angle measures ______. (Round to the nearest tenth)
What is 119.7 degrees.
400

The diameter is 4 cm, and the arc measure is 20 degrees, the sector area is ________. (Round to the nearest tenth)

What is 0.7 cm2

400

The diameter is 3 m, and the arc measure is 160 degrees, the arc length is ________. (Round to the nearest tenth)

What is 4.2 m.
400
The name of the formula that looks like this: V+F-E=2.
What is Euler's Formula.
500
An arc that is exactly 180 degrees.
What is a semicircle.
500
The vertex of a central angle is located here.
What is the center of the circle.
500

The diameter is 40 cm, and the arc measure is 150 degrees, the sector area is ________. (Round to the nearest tenth)

What is 523.6 cm2

500

The diameter is 16 units, and the arc measure is 90 degrees, the arc length is ________. (Round to the nearest tenth)

12.6 units
500
Mrs. Reller's favorite day of the week.
What is Thursday.