Vocabulary
Missing Angles
Circumference
Area
Missing Lengths
100
Two radii that meet at the center of a circle at 180
What is the diameter?
100
What is 50 degrees?
100
The two equations for circumference
What is pi*d, and 2*pi*r?
100
The formula for area of a circle
What is pi * r2
100
The diameter is 25
What is 12.5?
200
Two chords that form an angle in a circle.
What is an inscribed angle.
200
What is 30 degrees?
200
Circumference
What is 18.8?
200
Find the area
What is about 12.56?
200
The circumference is 25.13
What is about 4?
300
Two radii that meet at less than 180 degrees in a circle.
What is a central angle?
300
The measure of Angle A
What is 80 degrees?
300
Circumference
What is 15.7?
300
Find the area
What is about 254.5?
300
The area is 12.566
What is about 2?
400
An arc whose endpoints touch the diameter.
What is a semi-circle?
400
What is 62 degrees?
400
Circumference
What is 25.1?
400
The area of the grey section
What is about 1649.33?
400
The area is 201.1
What is about 16?
500
The central angle divided by 360, and multiplied by pi*r2
What is the Area of a Sector?
500
What is 53 degrees?
500
Circumference
What is 18.8?
500
The length of the square is 15, Find the area of the shaded portion
What is about 227.4?
500
The circumference is 39.58
What is about 12.6?