## anonymous 3 years ago 23. Name three faces of the cube above that intersect at point G. (1 point) a. DHGC, CBFG, GFEH b. ABFE, ADHE, ABCD c. DCBA, GEBF, GFEH d. GDAF, CBFG, GFEH 26. Find the surface area of the cylinder to the nearest tenth of a square unit. Use pi. = 3.14. a. 206 cm2 b. 100.5 cm2 c. 623 cm2 d. 412 cm2 mc0262.jpg nar0021.jpg

1. anonymous
2. anonymous
3. anonymous

I'll give you one face for the cube, and you should be able to find two more. One is ABCD.

4. anonymous

As for the surface area of the cylinder.. do you know the formula to find the surface area of a cylinder?

5. anonymous

no..

6. anonymous

which unit and lesson

7. anonymous

unit 2 lesson 16. 7th grade

8. anonymous

Here's the formula for the surface area of a cylinder: $2\pi r ^{2} + 2\pi r h$ Where r = radius h = height $\pi = p i$and pi = 3.14

9. anonymous

Do you know how to plug your values in?

10. anonymous

ohh im in 10th grade lol

11. anonymous

No....

12. anonymous

i tried but i got a WAY different answer then the answers provided..

13. anonymous

What values did you plug into where? (what did you use for the radius and what did you use for the height?)

14. anonymous

wait i think i got it is it 412???

15. anonymous

Well, here's how it should look before solving:$(2)(3.14)(4^{2}) + (2)(3.14)(4)(12.4)$

16. anonymous

If you simplify that by squaring the radius, then it's: (2)(3.14)(16) + (2)(3.14)(4)(12.4) How would you go bout solving this?

17. anonymous

|dw:1361818233566:dw|

18. anonymous

Yes! Very good!

19. anonymous

Thx!!