## christinaxxx 3 years ago okay can some help me find the area of a weird figure? its a square with two triangles attached on each side but i'm not sure how to draw it so i can put it on here...

1. Deathwolfe

|dw:1328578137979:dw| like that?

2. christinaxxx

|dw:1328578252017:dw|sort of but the triangles are not right triangles

3. christinaxxx

i need to find the area of that whole figure

4. Deathwolfe

have you tried cutting it up into peices then solving each piece and adding it up at the end

5. christinaxxx

yup i have but i'm just not sure its the right answer

6. christinaxxx

for the area i got 143,992 ft but i'm not totally sure thats right..

7. Deathwolfe

ahhh i see well if i could see the process i could check your math

8. christinaxxx

|dw:1328578695789:dw| (all the triangles are equal) so i divided 328 in half to get the one side. the other side i subtracted 550-328, then divided it by 2

9. christinaxxx

then i just did normal area for a triangle 1/2BH and so A=1/2(164)(111) for the square, i just did base times height, so 328x328 i added those two together and got my area

10. Deathwolfe

looks good to me.

11. christinaxxx

well could you maybe try it without using my work? just to see the answer u get

12. Deathwolfe

did you get 125,788?

13. christinaxxx

nope, i got 116,686 for some reason...

14. Deathwolfe

welll did you multiply the area of the triangle by two? that way your not adding one triangle to the area of the rectangle your adding the area of both triangles

15. christinaxxx

no i didnt! okay, now i got the same answer as u!

16. Deathwolfe

ok good :)

17. christinaxxx

thank u! i might need ur help a little later to if u dont mind

18. Deathwolfe

if im still on lol i will be glad to help

19. christinaxxx

alrightyy! i'll probably look dumb asking this but..... okay how do u get that area of 125,788 ft to be 10% and 20% larger?

20. Deathwolfe

you could multiply the area by .1 and .2 then add that to answer to the area