Circumference and Area

A Circle has a radius of 6 inches.  What is the circumference of the circle? (Best Choice)

• 3π or about 9.42 in

• 6π or about 18.84 in

• 12π or about 37.68 in

• 36π or about 113.04 in 

Find the circumference of a circle with a radius of 12.5 mm .

• 37.68mm

• 18.84mm

• 78.5mm

• none of the above

What is the area of this circle?

• 1385.44

• 2142.12

• 5541.77

• 1289.12

What is the radius of this circle?

• 20

• 10

• 40

What is the area of this circle?

• 1256.64

• 31.41

• 314.16

• 123.12

What is the area of this circle?

• 6082.12

• 1520.53

• 1893.14

• 1292.92

What is the area of this circle?

• 15393.8

• 1248.12

• 5930.12

• 3848.45

What is the area of this circle?

• 50.27

• 78.23

• 98.12

• 201.06

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

Find the circumference of the circle.

• 78.5 cm

• 15.7 cm

• 7.85 cm

• 19.6 cm