## UmmmHELP Group Title A circle has its center at the center of a square with 3-inch sides. Find the area of the square not covered by the circle. Round the answer to the nearest tenth. one year ago one year ago

1. UmmmHELP Group Title

2. FibonacciChick666 Group Title

the diameter of the circle is 3in. Why? the diameter is parallel to a side. So we will calculate the area of the circle and subtract that value from the area of the square. so area of the square=l*w=3*3=9 area of the circle=$\pi \times r^{2}$=$\pi\times 3/2^{2}$. THIS YIELDS: $9- 9/4 \times \pi$ then put into a calculator and get A=$6.75 \pi$

3. UmmmHELP Group Title

thanks!

4. FibonacciChick666 Group Title

no problem

5. UmmmHELP Group Title

Do you think you could check a few others? Im not sure if I did them right

6. FibonacciChick666 Group Title

sure

7. UmmmHELP Group Title

Find the circumference of the circle. Use

8. UmmmHELP Group Title

I will show you what I did

9. FibonacciChick666 Group Title

ok

10. UmmmHELP Group Title

|dw:1360805300876:dw|

11. UmmmHELP Group Title

Sorry its sloppy but does that look right so far?

12. FibonacciChick666 Group Title

ok. so you have the equation for Circumference right, but you solved for the radius. Hint: What relationship exists between the diameter and the radius?

13. UmmmHELP Group Title

Well the are uses radius so thats why I solved for radius first

14. UmmmHELP Group Title

*area

15. FibonacciChick666 Group Title

$[C=2\times \pi \times r]$

16. FibonacciChick666 Group Title

ok so let's restart

17. FibonacciChick666 Group Title

What information are you given?

18. UmmmHELP Group Title

just the picture and to use 3.14

19. FibonacciChick666 Group Title

ok. so what information did the picture contain?

20. UmmmHELP Group Title

The diameter

21. FibonacciChick666 Group Title

ok good. now how could you write the radius in terms of the diameter?

22. UmmmHELP Group Title

well its half the diameter

23. FibonacciChick666 Group Title

good

24. FibonacciChick666 Group Title

so do we have the information we need to answer the question?

25. UmmmHELP Group Title

Actually I think I figured it out I got what I was doing wrong now

26. FibonacciChick666 Group Title

ok just let me know your final answer and I will tell you if it is correct

27. UmmmHELP Group Title

I got 5.966

28. FibonacciChick666 Group Title

Although that is a correct answer it is usually better form to leave the answer in terms of pi because it is more accurate

29. FibonacciChick666 Group Title