Finding the Circumference of a Circle in Spanish

What is the circumference of a shape?

• The area inside the shape

• The distance around the shape

• The length of one side of the shape

• The volume of the shape

Which formula can be used to calculate the circumference of a circle using its diameter?

• Circumference = diameter + pi

• Circumference = 2 × radius

• Circumference = diameter × pi

• Circumference = radius × pi

If the radius of a circle is doubled, how does the circumference change?

• It quadruples

• It remains the same

• It doubles

• It halves

How do you calculate the diameter of a circle from its radius?

• Multiply the radius by pi

• Divide the radius by pi

• Divide the radius by 2

• Multiply the radius by 2

What is the relationship between diameter and radius?

• Radius is half of the diameter

• Diameter is half of the radius

• Diameter is twice the radius

• There is no specific relationship

What does 'pi' approximately equal in mathematics?

• 5.14

• 4.14

• 3.14

• 2.14

What is the circumference of a circle with a radius of 3 units?

• 36 units

• 18.84 units

• 12 units

• 6 units

Which formula is correct for calculating the circumference using the radius?

• C = r/2

• C = 2r

• C = πd

• C = 2πr

If a circle's radius is 3 units, what is its diameter?

• 1.5 units

• 6 units

• 9 units

• 3 units

Using the diameter, what is the circumference of a circle with a diameter of 6 units?

• 18.84 units

• 12 units

• 12 pi units

• 6 pi units