Understanding the Circle's Area

Practice using formulas to enhance understanding of circle ___

What formula is used to calculate the area of a circle?

• Area = π x diameter

• Area = 2π x radius

• Area = π x radius^2

• Area = 0.5 x π x radius^2

What formula can be used to find the circumference of a circle?

• Area = π x radius^2

• Circumference = π x diameter

• Circumference = 2 x π x radius

• Volume = 4/3 x π x radius^3

How can you calculate the radius of a circle?

• Divide the circumference by 2

• Divide the diameter by 2

• Multiply the diameter by 2

• Add the diameter and circumference

How can understanding circle measurements help solve problems related to circles?