1. anonymous

2. anonymous

Part A: Describe how you can decompose this shape into triangles. (2 points) Part B: What would be the area of each triangle? (5 points) Part C: Using your answers above, determine the area of the table's surface. (3 points)

3. anonymous

@UsukiDoll

4. anonymous

@myininaya could you help?

5. myininaya

|dw:1438911344280:dw|

6. myininaya

and i bet this is a regular polygon that means all side lengths are equal

7. myininaya

|dw:1438911426828:dw|

8. myininaya

can you decompose this thingy into triangles

9. anonymous

Yes you can decompose it into 6 triangles

10. myininaya

so like this by the way my polygon is horribly drawn |dw:1438911736430:dw| anyways each of these triangles is suppose to be the same shape as each other

11. anonymous

Yes

12. anonymous

it looks good

13. myininaya

is we divide 12 by 2 what do we get

14. anonymous

6

15. myininaya

i mean if not is but yes right

16. myininaya

|dw:1438911861761:dw||dw:1438911866930:dw|

17. myininaya

actually we didn't need that :p

18. myininaya

|dw:1438911894424:dw| what is the base of this triangle?

19. myininaya

base length that is

20. anonymous

10.4

21. myininaya

well that is the height of triangle I tried to darken

22. myininaya

what is the base length

23. anonymous

12

24. myininaya

perfect

25. myininaya

do you know how to find the area of a triangle given its height is 10.4 and its base is in 12 and just pretend i put the units is inches for each of those :p

26. anonymous

yes a=1/2* b*h

27. myininaya

right so .5*12*10.4 =?

28. anonymous

i thought it was 1/2 * 10.4 *12?

29. myininaya

it is I just didn't feel like writing a fraction 1/2 is the same as .5

30. myininaya

they are the same number

31. anonymous

oh so the answer is 62.4

32. myininaya

yes earlier you told me you had 6 of those triangles though

33. myininaya

so you could do 62.4+62.4+62.4+62.4+62.4+62.4 or just do 6(62.4)

34. anonymous

374.4

35. myininaya

|dw:1438912272702:dw|

36. myininaya

yep

37. myininaya

that is right

38. myininaya

and just to be more concise we are going to be in^2 at the end

39. myininaya

area has units squared

40. anonymous

so the area of the area of each triangle is 62.4?

41. myininaya

well in^2

42. myininaya

but yes

43. anonymous

ok

44. myininaya

45. anonymous

honestly it seemed harder but you made it easier

46. myininaya

i'm glad i could make things easier for ya

47. myininaya

peace

48. anonymous

Bye (: Thanks

49. anonymous