Find the circumferences of the two circles. Circle A has a radius of 21 meters and Circle B has a radius of 28 meters. Use pencil and paper. Is the relationship between the radius of a circle and the distance around the circle the same for all circles? Explain.

1.) Circumference of circle A = 131.95 metre

2.) Circumference of circle B = 175.93 metre

3.) Yes. Radius is proportional to the circumference.

Step-by-step explanation: Given that Circle A has a radius of 21 meters and Circle B has a radius of 28 meters

Circumference of a circle = 2πr

For circle A

Radius r = 21

Circumference = 2 * 3.143 * 21

Circumference = 131.95 metre

For circle B

Circumference = 2 * 3.143 * 28

Circumference = 175.93 metre

Is the relationship between the radius of a circle and the distance around the circle the same for all circles? YES

Because the radius of the circle is proportional to the distance around them (circumference) for all the circle. That is, the larger the radius, the larger the circumference