Nancy_Lam 4 years ago http://i1142.photobucket.com/albums/n608/nancylam67/page717.jpg

1. Rouault

Find the distance of the two points on the rectangle that are furthest apart. Use a^2+b^2=c^2, c is the hypotenuse, a and b are the two sides

2. Nancy_Lam

a and b for wide and long?

3. 3lroy

so what is the question so i can solve

4. Nancy_Lam

yes. can you look on the link

5. Nancy_Lam

how I can find the radius of sphere?

6. 3lroy

but the area of a sphere is 3/4 PI r²h rite???

7. Nancy_Lam

let me look

8. Nancy_Lam

A=4pir^2

9. 3lroy

ok

10. Nancy_Lam

how i can find the radius of sphere , given rectangular dimention

11. 3lroy

thats what im thinking rite now

its A.

13. Nancy_Lam

can you tell me how to get that answer?

14. 3lroy

so what is the base of the sphere

it is from the center of the rectangular cube to one of its extremes.

16. 3lroy

ok continue

that is , sqrt [(4/2)^2+(5/2)^2+(7/2)^2]

just visualize the rectangular solid, you will see immediately that that is the case.

19. 3lroy

ok good job

http://www.twiddla.com/527982 join me there I will show you

21. Nancy_Lam

Im there now

22. Nancy_Lam

I dn't know how start

23. 3lroy

im there now