Circles Flashcards
1
Q
How do you find the radius of a circle?
A
Divide the diameter by 2.
2
Q
How do you find the circumference of a circle?
A
Multiply the diameter by 3.14
3
Q
How do you find the area of a circle?
A
Multiply radius^2 by 3.14
4
Q
Radius = ?
Diameter = 10
A
5
5
Q
Radius = 10
Diameter = ?
A
20
6
Q
Radius = 5
Diameter = ?
Circumference = ?
A
Diameter = 10
Circumference = 31.4
7
Q
How do you find the diameter of a circle?
A
Multiply the radius by 2.
8
Q
Radius = ?
Diameter = 10
Circumference = ?
Area = ?
A
Radius = 5
Circumference = 31.4
Area = 78.5
