How to find the area of a circle

What is the radius of the circle mentioned in the video?

• 2 millimeters

• 3 millimeters

• 5 millimeters

• 4 millimeters

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

• 2πr^2

• πr^2

• 2πr

• πd

In the formula for the area of a circle, what does 'r' represent?

• Diameter

• Radius

• Circumference

• Area

What is the area of the circle with a radius of 3 millimeters?

• 9π millimeters squared

• 12π millimeters squared

• 6π millimeters squared

• 15π millimeters squared

Why do we square the units when calculating the area?

• To indicate a two-dimensional measurement

• To indicate a three-dimensional measurement

• To indicate a one-dimensional measurement

• To indicate a four-dimensional measurement