Answer:
690,000
Step-by-step explanation:
A=pie×radius squared is the area formula of a circle. The circumference formula or a circle is C=pie×diameter. 615.75=(3.14)(radius) squared. Divide both sides by the 3.14. What ever 615.75 divided by 3.14 is-is radius squared. The square root is your radius. The radius is half the diameter, so double what you have right now as the radius to get the diameter. Now since C=pie×diameter, your circumference is your pie×your diameter. Whatever your answer is-is your circumference.
100 to 49. Because area is units squared, and it is finding by multiplying the side lengths, you would simply square the ratio.
Answer:
Step-by-step explanation:
Girls:Total number of people
89:235
89:47
80 miles per hour is 128.74752 kilometers per hour
