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## anonymous one year ago help will give medal

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1. anonymous

Find the area of the following shape. You must show all work to receive credit.

2. anonymous

3. CGGURUMANJUNATH

54 unit ^ 2

4. welshfella

join EB this will give you a triangle and a trapezoid

5. CGGURUMANJUNATH

it is a combination of square and 2 triangles !

6. CGGURUMANJUNATH

BY joining EB AND ED .

7. CGGURUMANJUNATH

IS THAT CLEAR ? @hershey21

8. anonymous

i guess so when I find the area for a square and two triangles I add it up or multiply it

9. anonymous

@taramgrant0543664

10. phi

add adding is the same a "gluing" the pieces together to get the original shape.

11. anonymous

@phi so would I split the shape into one triangle and one rectangle and find the area , and when I find the area of both I add the two together and that is my area for the shape

12. phi

add the two blue lines in the picture. then count how many "boxes" tall and wide the "rectangle" is (it is actually a square) find its area. (base * height)

13. phi

*add the blue lines: I mean draw them in to form two triangles and a square

14. anonymous

a square and two triangles :/ why cant it be one triangle and one rectangle

15. phi

a rectangle has equal opposite sides. if we just do this (see fig2) the bottom figure is a trapezoid (the bottom is 7 wide and the top is 6 wide.. not a rectangle) if you know how to find the area of a trapezoid you can do that... but I was thinking it is easier to add a second blue line to the picture (see the first figure I posted) because you should know the formula for areas of rectangles (or square) and triangles

16. anonymous

@phi I will find the area of one triangle and one trapezoid and add it up then come back over and if don't mind if you can check that I did it correctly.

17. phi

ok. but you can check by dividing the trapezoid into a rectangle and triangle. That also will give the correct answer. If you get the same answer, you probably got it right.

18. phi

any luck?

19. anonymous

am having trouble finding the area for the triangle but the area of the trapezoid is 39

20. anonymous

@phi

21. phi

yes, 39 for the bottom trapezoid shape. how wide is the triangle (i.e. what is its base) ?

22. anonymous

11

23. anonymous

or is it 8

24. phi

put your finger on point F, and count how many boxes to get to B

25. anonymous

10

26. phi

yes. now count up from the base to point A

27. anonymous

3

28. phi

yes. area is 1/2 base * height

29. anonymous

15

30. anonymous

so would I add 15 and 39

31. phi

exactly

32. anonymous

so its 54

33. phi

yes

34. anonymous

thansk so much you were alot of help will fan you so if next time i need help i will @phi

35. phi

yw

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