MathAntics: Circumference and Area

What does the diagram represent

• Radius

• Diameter

• Area

• Square

Name the diagram.

• radius

• diameter

• area

• distance

What is the measurement of the diameter of the circle

• 7cm

• 14cm

• 49cm

• 28cm

Which is the symbol for Pi?

What is the formula for circumference

• diameter x diameter

• pi x diameter

• pi x radius

• pi x radius x radius

What is the formula to find the Area of a circle?

• diameter x diameter

• pi x diameter

• pi x radius

• pi x radius squared

What another formula for circumference

• C = pi x d x d

• C = d x d x d

• C = pi x r x r

What's another way to write the formula for area of a circle?

• A = d x d x d

• A = pi x d x d

• A = pi x c

• 200.96in

• 50.24in

• 12.56in

• 25.12in

• 21.98cm

• 43.96cm

• 153.86cm

• 615.44cm