Study guides

☆☆

Q: What is the circumference and the area of a circle with a radius of 3?

Write your answer...

Submit

Still have questions?

Related questions

The circumference of a circle if its radius is 3 is about 18.85

A circle with a radius of 3 units has a circumference of 18.85 units.

A circle with a radius of 3 units has a circumference of 18.85 units.

The circumference of a circle with a radius of 3 m is: 18.85 m.

A circle with a radius of 3 inches has a circumference of 18.8 inches

Diameter:6 radius:3 circumference:6(pi) area:9(pi)

The radius is 3.

Circumference = 2*pi*3 inches Area = pi*32 square inches

Circumference of a circle = 2*pi*radius or diameter*pi

The formula for the area of a circle is, A = πr2 If the area is tripled then the larger circle has an area of A2 = πR2 (where R is the new radius) But, πR2 = 3πr2 : R2 = 3r2 : R = r√3 The circumference of the original circle was 2πr. The circumference of the larger circle is 2πR = 2πr√3 Therefore, if the area is tripled, then the circumference increases by √3.

The circumference of a circle when the radius is 3 inches is: 18.8 inches (r x 2 x Pi = circumference)

18.85

People also asked