Answer:
The approximate circumference is 62.8 mm
Step-by-step explanation:
Circumference is basically the perimeter of the circle
Circumference is given by

Here the diameter is 20 mm, so the radius will be half of diameter = 10 mm
Substituting the given values, in above equation, we get -
Circumference =
mm
The approximate circumference is 62.8 mm
Answer: 95.40
Step-by-step explanation:
7.95*12=95.40
When x=42 that means it is 8x6 so that means that the y = 120 becuase its 20x6
answer= y=120
A=pi(r)^2
45=pi(r)^2 divide by pi (3.14)
14.33=r^2 square root both sides
3.79=r round
r=4
3/4 ÷ 1/5
= 3/4 × 5/1
= 15/4
i am a mathematics teacher. if anything to ask please pm me