## anonymous one year ago A circular picture is 8 inches in diameter. Part A What is the area of the picture in square inches? A. 4π square inches B. 8π square inches C. 16π square inches D. 32π square inches Part B A frame that is 2 inches wide surrounds the picture. What is the total area of the picture and the frame in square inches? A. 4π square inches B. 12π square inches C. 36π square inches D. 40π square inches

1. Kash_TheSmartGuy

Area of a circle:$A=\pi*r ^{2}$

2. Kash_TheSmartGuy

First step is to find the radius of the circle. We know that radius is half the diameter. So, what is the radius?

3. anonymous

4

4. anonymous

so a? for number 1

5. anonymous

oh thanks cx okay could u help me with part b

6. Kash_TheSmartGuy

Wait for part A we forgot to square it.

7. Kash_TheSmartGuy

SO what is 4^2?

8. Kash_TheSmartGuy

16.. so for part A, C is the answer

9. anonymous

okay but i need part b xc

10. anonymous

11. anonymous

part b is exactly the same as part A, except now you've added 2 to the radius. The radius is 6. Use the formula to find the area

12. anonymous

so 18^2 ?????

13. anonymous

|dw:1435425165814:dw| What number should go in for r in part b if the radius is 6?

14. anonymous

12! cx???????????????????

15. anonymous

or no the answr is not 12

16. anonymous

how are you getting 12? You're not showing what you're doing

17. anonymous

i thought u double 6..sorry

18. anonymous

not double 6, but 6 squared. 6² means 6 * 6

19. anonymous

36

20. anonymous

yes

21. anonymous

so thats my asnwer

22. anonymous

36π is the area

23. anonymous

THANK YOU SO MUCH c: