Question

Please help I’m so confused 25 points and brainliest!!

Answer 1

Answer:

1=15.7

2:31.4

3:12.5

Step-by-step explanation:

1=5×3.14=15.71

2:5×2=10×3.14=31.42

3:39.25÷3.14=12.5

hope this helps

Answer 2

Answer:

1 is 15.7, 2 is 31.4, 3 is 12.5

Step-by-step explanation:

1.C=πd

C=π×5

C=5π

Circumference = 15.7

2.C=2πr

C=2×π×5

C=10π

Circumference = 31.4

3. diameter=Cπ

d=39.25π

d=39.25/3.14

Diameter = 12.5

Hope this helped.