## aNY Group Title plzzzz help me just one question A=72 ft2 B=74 ft2 C=86 ft2 D=32 ft2 Find the area of the figure. one year ago one year ago

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1. aNY Group Title

2. whpalmer4 Group Title

Decompose that into a rectangle and a right triangle by extending the 6 ft line down to the base. Find the area of both of those figures and add them.

3. aNY Group Title

HMM

4. whpalmer4 Group Title

Can you find the base and the height of that triangle? The area will be 1/2 * base * height.

5. aNY Group Title

still don'y get it.

6. aNY Group Title

you there

7. aNY Group Title

anyone that can help

8. zepdrix Group Title

|dw:1359845754154:dw|Understand how we're starting this? Breaking it up into 2 easier shapes :)

9. aNY Group Title

yes

10. zepdrix Group Title

|dw:1359845881864:dw|

11. zepdrix Group Title

|dw:1359845947895:dw|

12. zepdrix Group Title

See how the dimensions of the triangle come about? :)

13. aNY Group Title

yaa

14. zepdrix Group Title

|dw:1359846112405:dw|So we want to find the area of these two objects separately. Then we'll add those area's together to get the total area of the figure.

15. aNY Group Title

ok so i got C

16. zepdrix Group Title

Hmm did you forget the formula for area of a triangle maybe? :o

17. zepdrix Group Title

cuz C is too big :c

18. aNY Group Title

idk what the answer is then

19. aNY Group Title

lol :)

20. zepdrix Group Title

well it feels like you're just guessing :) lol

21. aNY Group Title

i multiplide 10 and 7 i got 70 then i multiplide 4 and 2 then i got 16 then i add them together which i got 86

22. zepdrix Group Title

The 70 looks good. $$4 \times 2 \ne 16$$ , might wanna visit Mr Calculator for that one! :O And then remember, The area of a triangle we take half of the base times height.

23. aNY Group Title

woops i ment 8

24. zepdrix Group Title

Cool c: Just remember for a triangle,$\large A=\frac{1}{2}b\cdot h$

25. zepdrix Group Title

So we only want half of that 8 c:

26. aNY Group Title

hmm

27. zepdrix Group Title

|dw:1359846808816:dw|If we had a square like this, the area would be 8, because 4 x 2 = 8.

28. zepdrix Group Title

|dw:1359846855993:dw|But we have a triangle, which is half of that area.

29. zepdrix Group Title

still confused? <:o

30. aNY Group Title

yes

31. zepdrix Group Title

aw :c

32. aNY Group Title

ya sorry i'm not that smart

33. aNY Group Title

was 74

34. zepdrix Group Title

im sure that's not true c: math isn't for everyone!

35. zepdrix Group Title

ya 74 D:

36. aNY Group Title

so is 74 right

37. aNY Group Title

@zepdrix

38. zepdrix Group Title

yes c: