Triangles & Circumference of Circles

What is the circumference of this circle?

• 78.5 m

• 31.4 m

• 15.7 m

• 3.14 m

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

• Radius
• Diameter

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

what is the circumference of this circle ?

• 18.84 cm

• 37.68 cm

• 75.36 cm

• 68.4 cm

• 113.04 cm

• 21

• 39

• 45

• 126

Solve for x.

• 16
• 11
• 50
• 6

Find x

• 52 degrees

• 31 degrees

• 103 degrees

• 45 degrees

Find x

• 40 degrees

• 21 degrees

• 42 degrees

• 39 degrees

• 47.3°

• 137.3°

• 48.8°

• 132.8°

• 47.3°

• 137.3°

• 48.8°

• 132.8°