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Mathematics 8 Online
OpenStudy (aizhalee):

Please help, Medal and Fan will be given ! Find the area of the following shape. You must show all work to receive credit.

OpenStudy (aizhalee):

OpenStudy (aizhalee):

@welshfella

OpenStudy (anonymous):

wow she deleted me tag lmfao

OpenStudy (welshfella):

draw a line EB now its split into a triangle and a trapezoid. area of the triangle = 0.5 * base * height area of the trap ezoid = (height/ 2) * sum of the parallel sides

OpenStudy (aizhalee):

I sure did , only welshfella is being nice to reply

OpenStudy (anonymous):

im was trying to figure it out sorry

OpenStudy (aizhalee):

Ok Thank you welshfella I now see the formula used to solve the area , do i use the coordinates ?

OpenStudy (aizhalee):

Its ok

OpenStudy (anonymous):

you use the boxes to count the length of a side

OpenStudy (welshfella):

count the lines to find the length base of triangle = 10 and height = 3

OpenStudy (anonymous):

so 3 boxes would mean the side is 3 lengths long

OpenStudy (welshfella):

yea

OpenStudy (aizhalee):

ohhh Ok I see I see . :)

OpenStudy (anonymous):

so for the triangle you would do 3x4=12/2=6

OpenStudy (aizhalee):

so from the height of the trapezoid is 6 and the base is 7

OpenStudy (anonymous):

then the other triangle would be 6x3=18/2=9

OpenStudy (welshfella):

area of trapezoid = (6/2) * (6 + 7) = 3 * 13 = ?

OpenStudy (aizhalee):

Ok quick question where was the four from ? from 3*4=12

OpenStudy (anonymous):

i split the big triangle in half and got two smaller triangles

OpenStudy (aizhalee):

3*13 is 39

OpenStudy (welshfella):

oh right you are doing it a different way from me

OpenStudy (aizhalee):

o.o

OpenStudy (anonymous):

ya, im just spliting the triangles in half to make it easier for me

OpenStudy (welshfella):

right so thats the area of the trapezoid the area of triangle AFB is 1/2 * 3 * 10 = ?

OpenStudy (aizhalee):

15

OpenStudy (anonymous):

yes

OpenStudy (welshfella):

ok so finally total area = 39 + 15 = 64

OpenStudy (anonymous):

:D

OpenStudy (aizhalee):

Wow , Thank you both so much ♥ I really appreciate it :D . and sorry lucas for being a bit rude for untagging you . God bless and take care

OpenStudy (anonymous):

np and you're welcome

OpenStudy (welshfella):

yw

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