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Mathematics 21 Online
OpenStudy (anonymous):

am i correct?

OpenStudy (anonymous):

Figure ABCD has vertices A(−4, 1), B(2, 1), C(2, −5), and D(−4, −3). What is the area of figure ABCD?

OpenStudy (anonymous):

i got 24 units

OpenStudy (anonymous):

how?

OpenStudy (anonymous):

well i used my graph paper i placed the coordinates and counted 24 square units

OpenStudy (anonymous):

no thats not correct

OpenStudy (anonymous):

when you graphed it you got a wierd shape right?

OpenStudy (anonymous):

no i got a rectangle but i probally did it wrong..

OpenStudy (anonymous):

hold on

OpenStudy (anonymous):

this is what u should get

OpenStudy (anonymous):

@KAKES1967

OpenStudy (anonymous):

i see it

OpenStudy (anonymous):

you can get two shapes out of this. which ones

OpenStudy (anonymous):

rectangle and triangle?

OpenStudy (anonymous):

correct

OpenStudy (anonymous):

solve for the rectangle first

OpenStudy (anonymous):

and then the triangle and then add the two areas together

OpenStudy (anonymous):

what number for the rectangle?

OpenStudy (anonymous):

area for the rectangle = 24 area for triangle is 1/2 base * hight = 1/2 (2)*6

OpenStudy (anonymous):

area for triangle = ?

OpenStudy (anonymous):

6

OpenStudy (anonymous):

correct. so what is 24 + 6?

OpenStudy (anonymous):

30 square units

OpenStudy (anonymous):

correct. and that is your answer

OpenStudy (anonymous):

Thank you so much for taking the time to explain it (:

OpenStudy (anonymous):

no problem

OpenStudy (anonymous):

thx for the medal :)

OpenStudy (anonymous):

Np you deserve it

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