Area of Circle

What is the formula for finding the area of a circle?

• A = π·d

• C = 2·π·r

• A = π·r²

• C = π·d

What does A represent in the formula:

A = π·r²

• Area

• Radius

• Pi

• Diameter

What does r represent in the formula:

A = π·r²

• circumference

• radius

• diameter

• squared

Find the area of the circle. Use 3.14 for pi.

• 803.84 cm²

• 25.12 cm²

• 50.24 cm²

• 200.96 cm²

What is the area of this circle?

• 1256.64
• 31.41
• 314.16
• 123.12

What is the area of this circle?

• 62.59
• 113.1
• 19.81
• 28.27

What is the area of this circle?

• 50.27
• 78.23
• 98.12
• 201.06

What is the area of this circle?

• 201.06
• 50.27
• 123.12
• 94.43

Is the red line a radius or diameter of the circle?

• Radius
• Diameter

Is the red line a radius or diameter of the circle?

• Radius
• Diameter