## AcidRa1n Group Title PLEASE HELP http://i.imgur.com/GVvd6.png 2 years ago 2 years ago

1. AcidRa1n Group Title

5. PIE12 6. PIE36 Is that right?

2. Mertsj Group Title

|dw:1338516252471:dw|

3. Mertsj Group Title

3. 3sqrt3

4. Mertsj Group Title

|dw:1338516418696:dw|

5. Mertsj Group Title

Radius of circle = 6 since the triangles are equilateral. So circumference = 2(6)pi=12pi

6. Mertsj Group Title

Area of circle = 36 pi

7. Mertsj Group Title

Do you mean how many degrees in each interior angle?

8. AcidRa1n Group Title

nvm

9. AcidRa1n Group Title

Can you check my other answers? I'm dont with all of them here, I need to scan it again

10. AcidRa1n Group Title

done*

11. Mertsj Group Title

I got 8.3 for the apothem of the pentagon. Your setup seems to be right. Also you need to pay more attention to the form of the answers in both questions.

12. Mertsj Group Title

$\tan 36=\frac{6}{b}$ $b \tan 36=6$ $b=\frac{6}{\tan 36}=8.3$

13. Mertsj Group Title

Therefore the area of the pentagon = 5(1/2)(12)(8.3)=247.7

14. Mertsj Group Title

Slant height = $\sqrt{(8.3)^2+(10)^2}=13.0$

15. Mertsj Group Title

Surface = 5(1/2)(13.0)(12)+247.7=637.7

16. Mertsj Group Title

$V=\frac{1}{3}(247.7)(10)=825.7$

17. AcidRa1n Group Title

are you sure O.o I got complete diferent answers... Smh at me

18. Mertsj Group Title

The reason is that we did not agree on the apothem. Did you see what I said about the apothem?

19. AcidRa1n Group Title

ohh yeah so everything would be wrong after that lol..

20. Mertsj Group Title

Well check your work. I could have made a mistake. We agree on the setup.

21. AcidRa1n Group Title

are you sure about the surface area? you ADD the area of the pentagon?

22. Mertsj Group Title

The pyramid is composed of the base which is a pentagon and 5 sides which are 5 congruent triangles. If it said lateral surface area it would be just the 5 triangles but it says surface area so we have to assume it means all of the surfaces.

23. AcidRa1n Group Title

oh yeah

24. AcidRa1n Group Title

How long will you be on? Im working on the other side will you be able to help me with that?

25. Mertsj Group Title

Probably about another 20-25 minutes.

26. AcidRa1n Group Title

alright

27. AcidRa1n Group Title

@Mertsj http://i.imgur.com/bpW5d.jpg

28. AcidRa1n Group Title

im doing it as we speak I just dont want you to go

29. AcidRa1n Group Title

lol you like my -10?

30. Mertsj Group Title

1/2 the difference of the arcs.

31. Mertsj Group Title

30

32. Mertsj Group Title

18. outside times whole = outside times whole.

33. Mertsj Group Title

8(x+8)=7(16) 8x+64=112 x=6

34. AcidRa1n Group Title

Are you sure about 17. being 30? I think it's only half for like the 120 down to 60. 60 down to B is diferent I think

35. Mertsj Group Title

The measure of an angle formed by a two secants drawn from a point outside the circle is half the the difference of the intercepted arcs. (far arc - near arc)

36. Mertsj Group Title

19. Half the sum of the arcs.

37. Mertsj Group Title

20. 6y=8(9)

38. Mertsj Group Title

21. $(x-3)^2+(y+9)^2=25$

39. Mertsj Group Title

22. $(x+4)^2+(y-11)^2=100$

40. Mertsj Group Title

23. 13.6

41. AcidRa1n Group Title

Mert

42. AcidRa1n Group Title

Do you have paypal? lol

43. AcidRa1n Group Title

Id like to make a educational donation

44. AcidRa1n Group Title

LOL

45. Mertsj Group Title

24. 8.0

46. Mertsj Group Title

25. 44 but you had better check these answers because I did not. I just whipped them off. Could easily have hit a wrong button. Good night

47. AcidRa1n Group Title

ah! night man thanks