Question

Find the circumferences of both circles to the nearest tenth.

Answer 1

Answer:

Step-by-step explanation:

C=pi (d)      circumference = pi (3.14) times the diameter which is 10, because the radius 5 and diameter is twice the radius..........

you can also use Formula C=2pi r which will give you the same answer.

31.4 cm for orange circle

the diameter (all the way through the center of the circle) for blue circle would be 20

C=pi (d)   3.14 times 20=  62.8 cm for blue circle

Answer 2

Answer:

The Orange circle is: 78.5 cm

And The Blue circle is 314.2 cm

Step-by-step explanation:

By taking the formula r^2(pi), and filling it in with the radius for the orange circle you will get 78.5. For the blue circle the radius would be the orange's radius combined with the rim given. Using the same formula you will get 314.2.