Applying the understanding of the circumference of a circle to solve problems

What is the diameter of this circle?

• 3.5
• 6.5
• 6
• 7

What is the diameter of this sphere?

• 6 cm

• 12 cm

• 6 cm²

• 12 cm²

If my radius is 7ft, what is my diameter?

what is the radius of a circle if the diameter is 15.7835

• 7.89145

• 7.89175

• 7.89165

• 7.89166

What is the radius of a circle with a diameter of 45 miles?

• 22.5 miles

• 141.3 miles

• 90 miles

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

The radius is ____ the diameter.

• 3x

• 1/4

• 1/2

what is the diameter of this circle?

• 10

• 5

• 20

• 50

The Radius of a circle is _______ it's diameter.

What is the radius of a circle with a diameter of 10 units?

• 10 units

• 5 units

• 7 units

• 3 units