What is arc length in a circle?

A portion of the circumference of a circle.

What is the radius of a circle?

a line from the center to the circumference of a circle.

What is the formula to convert radian measure to degree measure?

radian measure×180/π=degree measure, radian measure×360/2π=degree measure

What is the diameter of a circle?

a line going from side to side through a circle's center.

What is the formula to convert degree measure to radian measure?

degree measure×π/180= radian measure, degree measure×2π/360= radian measure

What do h and k represent in the formula for the equation of a circle?

The coordinates for the center of the circle.

the measure of the central angle associated with the arc.

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Geometry Review: Circles-Part 1

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A geometry quiz that reviews the terms, definitions, and formulas of circles such as circumference and arc length.

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Questions 15

Answers

1
What is arc length in a circle?
A portion of the circumference of a circle.
A portion of the circumference of a triangle.
A portion of the area of a hexagon.
A portion of the area of a circle.
2
What is the radius of a circle?
the distance around one-fourth of a circle.
the area of one-fourth of a circle.
a from one point on a circle to another point on a circle.
a line from the center to the circumference of a circle.
3
What is the formula for the circumference of a circle?
πr2
πd
2πr
πd(m/360)
4
What is the formula to convert radian measure to degree measure?
radian measure×180/π=degree measure
radian measure×360/2π=degree measure
radian measure×360/2πr=degree measure
radian measure×360/π=degree measure
5
What is the formula for the equation of a circle?
𝒙-h2+𝒚-k2=r2
(𝒙+h)2+(𝒚+k)2=r2
(𝒙-h)2+(𝒚-k)2=r2
(𝒙-h)+(𝒚-k)=r
6
What is the diameter of a circle?
a line going from the center to any point outside a circle.
a line going from one side to a circle's center.
a line going from side to side through a circle's center.
a line going from side to side through a circle
7
What is the formula to convert degree measure to radian measure?
degree measure×2πr/360= radian measure
degree measure×π/360= radian measure
degree measure×π/180= radian measure
degree measure×2π/360= radian measure
8
What is the formula to find the arc length of a circle?
2πr
πr2(m/360)
2πr(m/360)
πd(m/360)
9
True or False: A non rigid transformation may affect both the radius and center of a circle.
False
True
10
What is the formula for the area of a circle?
πr2(m/360)
πr2
2πr
πd2
11
What do h and k represent in the formula for the equation of a circle?
The coordinates for the center of the circle.
The coordinates of one point on a square.
The coordinates of the 𝒙 and 𝒚 values.
The coordinates for an edge of the circle.
12
What is a radian?
circumference of a circle associated with its central angle.
the measure of an inscribed angle associated with the arc.
the measure of the central angle associated with the arc.
the length of an arc associated with the area sector it has.
13
True or False: A rigid transformation may affect both the radius and center of a circle.
True
False
14
What is circumference?
The distance around a triangle.
The distance around half of the circle
The area of the circle
The distance around the circle
15
What is the formula for the area sector of a circle?
πr2(m/360)
πr2(m/180)
πr2
2πr(m/360)

Geometry Review: Circles-Part 1 Flashcards | StudBud